The report “Testing the Waters 2009” (nrdc.org) included information on the water quality at the 82 most popular swimming beaches in California. Thirty-eight of these beaches are in Los Angeles a. Construct a dotplot of the percent of tests failing to meet water quality standards for the Los Angeles County beaches. Write a few sentences describing any interesting features of the dotplot. b. Construct a dotplot of the percent of tests failing to meet water quality standards for the beaches in other counties. Write a few sentences describing any interesting features of the dotplot. c. Based on the two dolplots from Parts (a) and (b), describe how the percent of tests that fail to meet water quality standards for beaches in Los Angeles County differs from those of other counties.

Question

Want to see more full solutions like this?

Answer 1

Textbook Question

Chapter 1, Problem 33CR

The report “Testing the Waters 2009” (nrdc.org) included information on the water quality at the 82 most popular swimming beaches in California. Thirty-eight of these beaches are in Los Angeles

Chapter 1, Problem 33CR, The report Testing the Waters 2009 (nrdc.org) included information on the water quality at the 82

a. Construct a dotplot of the percent of tests failing to meet water quality standards for the Los Angeles County beaches. Write a few sentences describing any interesting features of the dotplot.
b. Construct a dotplot of the percent of tests failing to meet water quality standards for the beaches in other counties. Write a few sentences describing any interesting features of the dotplot.
c. Based on the two dolplots from Parts (a) and (b), describe how the percent of tests that fail to meet water quality standards for beaches in Los Angeles County differs from those of other counties.

a.

Expert Solution

To determine

Sketch the dot plot of the percent of tests failing to meet water quality standards for the County LA.

Explain the features of the dot plot.

Answer to Problem 33CR

The dot plot is given below:

Introduction To Statistics And Data Analysis, Chapter 1, Problem 33CR , additional homework tip 1

Explanation of Solution

Calculation:

The given information is the water quality of 82 beaches in County LA and other counties.

Software procedure:

Step-by-step procedure to obtain the dotplot using MINITAB software is given below:

Choose Graph > Dot plot.
Choose One Y-Simple and then click OK.
In Graph variables, enter the column of Los Angeles County.
Click OK.

From the dot plot, it is clear that, an unusually high value in the data is 43. Almost all the data points are lie between 2 and 33. Most of the observations are in the lower end compared to the upper end. A representative value of the data is around 16.

b.

Expert Solution

To determine

Sketch the dot plot of the percent of tests failing to meet water quality standards for the beaches in the other counties.

Explain the features of the dot plot.

Answer to Problem 33CR

The dot plot is given below:

Introduction To Statistics And Data Analysis, Chapter 1, Problem 33CR , additional homework tip 2

Explanation of Solution

Calculation:

Dotplot:

Software procedure:

Step-by-step procedure to obtain the dotplot using MINITAB software is given below:

Choose Graph > Dot plot.
Choose One Y-Simple and then click OK.
In Graph variables, enter the column of Other Counties.
Click OK.

From the dot plot, it is clear that, an unusually high value in the data is 40. Almost all the data points are lie between 0 and 17. Most of the observations are in the lower end compared to the upper end. A representative value of the data is around 3.

c.

Expert Solution

To determine

Compare the percent of tests failing to meet water quality standards for the beaches in the County LA and other counties

Explanation of Solution

From the dot plot obtained in Part (a) and (b), a representative value for County LA is around 16 and that of other countries are around 3. That is, the representative value is high for County LA. Both dotplots contain an extreme value. The distribution of County LA is nearly uniform. However, that of other countries are right skewed.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Students have asked these similar questions

Problem 3. Pricing a multi-stock option the Margrabe formula The purpose of this problem is to price a swap option in a 2-stock model, similarly as what we did in the example in the lectures. We consider a two-dimensional Brownian motion given by W₁ = (W(¹), W(2)) on a probability space (Q, F,P). Two stock prices are modeled by the following equations: dX = dY₁ = X₁ (rdt+ rdt+0₁dW!) (²)), Y₁ (rdt+dW+0zdW!"), with Xo xo and Yo =yo. This corresponds to the multi-stock model studied in class, but with notation (X+, Y₁) instead of (S(1), S(2)). Given the model above, the measure P is already the risk-neutral measure (Both stocks have rate of return r). We write σ = 0₁+0%. We consider a swap option, which gives you the right, at time T, to exchange one share of X for one share of Y. That is, the option has payoff F=(Yr-XT). (a) We first assume that r = 0 (for questions (a)-(f)). Write an explicit expression for the process Xt. Reminder before proceeding to question (b): Girsanov's theorem…

Problem 1. Multi-stock model We consider a 2-stock model similar to the one studied in class. Namely, we consider = S(1) S(2) = S(¹) exp (σ1B(1) + (M1 - 0/1 ) S(²) exp (02B(2) + (H₂- M2 where (B(¹) ) +20 and (B(2) ) +≥o are two Brownian motions, with t≥0 Cov (B(¹), B(2)) = p min{t, s}. " The purpose of this problem is to prove that there indeed exists a 2-dimensional Brownian motion (W+)+20 (W(1), W(2))+20 such that = S(1) S(2) = = S(¹) exp (011W(¹) + (μ₁ - 01/1) t) 롱) S(²) exp (021W (1) + 022W(2) + (112 - 03/01/12) t). where σ11, 21, 22 are constants to be determined (as functions of σ1, σ2, p). Hint: The constants will follow the formulas developed in the lectures. (a) To show existence of (Ŵ+), first write the expression for both W. (¹) and W (2) functions of (B(1), B(²)). as (b) Using the formulas obtained in (a), show that the process (WA) is actually a 2- dimensional standard Brownian motion (i.e. show that each component is normal, with mean 0, variance t, and that their…

The scores of 8 students on the midterm exam and final exam were as follows. Student Midterm Final Anderson 98 89 Bailey 88 74 Cruz 87 97 DeSana 85 79 Erickson 85 94 Francis 83 71 Gray 74 98 Harris 70 91 Find the value of the (Spearman's) rank correlation coefficient test statistic that would be used to test the claim of no correlation between midterm score and final exam score. Round your answer to 3 places after the decimal point, if necessary. Test statistic: rs =

Answer 2

Textbook Question

Chapter 1, Problem 33CR

The report “Testing the Waters 2009” (nrdc.org) included information on the water quality at the 82 most popular swimming beaches in California. Thirty-eight of these beaches are in Los Angeles

Chapter 1, Problem 33CR, The report Testing the Waters 2009 (nrdc.org) included information on the water quality at the 82

a. Construct a dotplot of the percent of tests failing to meet water quality standards for the Los Angeles County beaches. Write a few sentences describing any interesting features of the dotplot.
b. Construct a dotplot of the percent of tests failing to meet water quality standards for the beaches in other counties. Write a few sentences describing any interesting features of the dotplot.
c. Based on the two dolplots from Parts (a) and (b), describe how the percent of tests that fail to meet water quality standards for beaches in Los Angeles County differs from those of other counties.

a.

Expert Solution

To determine

Sketch the dot plot of the percent of tests failing to meet water quality standards for the County LA.

Explain the features of the dot plot.

Answer to Problem 33CR

The dot plot is given below:

Introduction To Statistics And Data Analysis, Chapter 1, Problem 33CR , additional homework tip 1

Explanation of Solution

Calculation:

The given information is the water quality of 82 beaches in County LA and other counties.

Software procedure:

Step-by-step procedure to obtain the dotplot using MINITAB software is given below:

Choose Graph > Dot plot.
Choose One Y-Simple and then click OK.
In Graph variables, enter the column of Los Angeles County.
Click OK.

From the dot plot, it is clear that, an unusually high value in the data is 43. Almost all the data points are lie between 2 and 33. Most of the observations are in the lower end compared to the upper end. A representative value of the data is around 16.

b.

Expert Solution

To determine

Sketch the dot plot of the percent of tests failing to meet water quality standards for the beaches in the other counties.

Explain the features of the dot plot.

Answer to Problem 33CR

The dot plot is given below:

Introduction To Statistics And Data Analysis, Chapter 1, Problem 33CR , additional homework tip 2

Explanation of Solution

Calculation:

Dotplot:

Software procedure:

Step-by-step procedure to obtain the dotplot using MINITAB software is given below:

Choose Graph > Dot plot.
Choose One Y-Simple and then click OK.
In Graph variables, enter the column of Other Counties.
Click OK.

From the dot plot, it is clear that, an unusually high value in the data is 40. Almost all the data points are lie between 0 and 17. Most of the observations are in the lower end compared to the upper end. A representative value of the data is around 3.

c.

Expert Solution

To determine

Compare the percent of tests failing to meet water quality standards for the beaches in the County LA and other counties

Explanation of Solution

From the dot plot obtained in Part (a) and (b), a representative value for County LA is around 16 and that of other countries are around 3. That is, the representative value is high for County LA. Both dotplots contain an extreme value. The distribution of County LA is nearly uniform. However, that of other countries are right skewed.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Textbook Question

Chapter 1, Problem 33CR

The report “Testing the Waters 2009” (nrdc.org) included information on the water quality at the 82 most popular swimming beaches in California. Thirty-eight of these beaches are in Los Angeles

Chapter 1, Problem 33CR, The report Testing the Waters 2009 (nrdc.org) included information on the water quality at the 82

a. Construct a dotplot of the percent of tests failing to meet water quality standards for the Los Angeles County beaches. Write a few sentences describing any interesting features of the dotplot.
b. Construct a dotplot of the percent of tests failing to meet water quality standards for the beaches in other counties. Write a few sentences describing any interesting features of the dotplot.
c. Based on the two dolplots from Parts (a) and (b), describe how the percent of tests that fail to meet water quality standards for beaches in Los Angeles County differs from those of other counties.

a.

Expert Solution

To determine

Sketch the dot plot of the percent of tests failing to meet water quality standards for the County LA.

Explain the features of the dot plot.

Answer to Problem 33CR

The dot plot is given below:

Introduction To Statistics And Data Analysis, Chapter 1, Problem 33CR , additional homework tip 1

Explanation of Solution

Calculation:

The given information is the water quality of 82 beaches in County LA and other counties.

Software procedure:

Step-by-step procedure to obtain the dotplot using MINITAB software is given below:

Choose Graph > Dot plot.
Choose One Y-Simple and then click OK.
In Graph variables, enter the column of Los Angeles County.
Click OK.

From the dot plot, it is clear that, an unusually high value in the data is 43. Almost all the data points are lie between 2 and 33. Most of the observations are in the lower end compared to the upper end. A representative value of the data is around 16.

b.

Expert Solution

To determine

Sketch the dot plot of the percent of tests failing to meet water quality standards for the beaches in the other counties.

Explain the features of the dot plot.

Answer to Problem 33CR

The dot plot is given below:

Introduction To Statistics And Data Analysis, Chapter 1, Problem 33CR , additional homework tip 2

Explanation of Solution

Calculation:

Dotplot:

Software procedure:

Step-by-step procedure to obtain the dotplot using MINITAB software is given below:

Choose Graph > Dot plot.
Choose One Y-Simple and then click OK.
In Graph variables, enter the column of Other Counties.
Click OK.

From the dot plot, it is clear that, an unusually high value in the data is 40. Almost all the data points are lie between 0 and 17. Most of the observations are in the lower end compared to the upper end. A representative value of the data is around 3.

c.

Expert Solution

To determine

Compare the percent of tests failing to meet water quality standards for the beaches in the County LA and other counties

Explanation of Solution

From the dot plot obtained in Part (a) and (b), a representative value for County LA is around 16 and that of other countries are around 3. That is, the representative value is high for County LA. Both dotplots contain an extreme value. The distribution of County LA is nearly uniform. However, that of other countries are right skewed.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Textbook Question

Chapter 1, Problem 33CR

The report “Testing the Waters 2009” (nrdc.org) included information on the water quality at the 82 most popular swimming beaches in California. Thirty-eight of these beaches are in Los Angeles

Chapter 1, Problem 33CR, The report Testing the Waters 2009 (nrdc.org) included information on the water quality at the 82

a. Construct a dotplot of the percent of tests failing to meet water quality standards for the Los Angeles County beaches. Write a few sentences describing any interesting features of the dotplot.
b. Construct a dotplot of the percent of tests failing to meet water quality standards for the beaches in other counties. Write a few sentences describing any interesting features of the dotplot.
c. Based on the two dolplots from Parts (a) and (b), describe how the percent of tests that fail to meet water quality standards for beaches in Los Angeles County differs from those of other counties.

a.

Expert Solution

To determine

Sketch the dot plot of the percent of tests failing to meet water quality standards for the County LA.

Explain the features of the dot plot.

Answer to Problem 33CR

The dot plot is given below:

Introduction To Statistics And Data Analysis, Chapter 1, Problem 33CR , additional homework tip 1

Explanation of Solution

Calculation:

The given information is the water quality of 82 beaches in County LA and other counties.

Software procedure:

Step-by-step procedure to obtain the dotplot using MINITAB software is given below:

Choose Graph > Dot plot.
Choose One Y-Simple and then click OK.
In Graph variables, enter the column of Los Angeles County.
Click OK.

From the dot plot, it is clear that, an unusually high value in the data is 43. Almost all the data points are lie between 2 and 33. Most of the observations are in the lower end compared to the upper end. A representative value of the data is around 16.

b.

Expert Solution

To determine

Sketch the dot plot of the percent of tests failing to meet water quality standards for the beaches in the other counties.

Explain the features of the dot plot.

Answer to Problem 33CR

The dot plot is given below:

Introduction To Statistics And Data Analysis, Chapter 1, Problem 33CR , additional homework tip 2

Explanation of Solution

Calculation:

Dotplot:

Software procedure:

Step-by-step procedure to obtain the dotplot using MINITAB software is given below:

Choose Graph > Dot plot.
Choose One Y-Simple and then click OK.
In Graph variables, enter the column of Other Counties.
Click OK.

From the dot plot, it is clear that, an unusually high value in the data is 40. Almost all the data points are lie between 0 and 17. Most of the observations are in the lower end compared to the upper end. A representative value of the data is around 3.

c.

Expert Solution

To determine

Compare the percent of tests failing to meet water quality standards for the beaches in the County LA and other counties

Explanation of Solution

From the dot plot obtained in Part (a) and (b), a representative value for County LA is around 16 and that of other countries are around 3. That is, the representative value is high for County LA. Both dotplots contain an extreme value. The distribution of County LA is nearly uniform. However, that of other countries are right skewed.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

a.

Expert Solution

To determine

Sketch the dot plot of the percent of tests failing to meet water quality standards for the County LA.

Explain the features of the dot plot.

Answer to Problem 33CR

The dot plot is given below:

Introduction To Statistics And Data Analysis, Chapter 1, Problem 33CR , additional homework tip 1

Explanation of Solution

Calculation:

The given information is the water quality of 82 beaches in County LA and other counties.

Software procedure:

Step-by-step procedure to obtain the dotplot using MINITAB software is given below:

Choose Graph > Dot plot.
Choose One Y-Simple and then click OK.
In Graph variables, enter the column of Los Angeles County.
Click OK.

From the dot plot, it is clear that, an unusually high value in the data is 43. Almost all the data points are lie between 2 and 33. Most of the observations are in the lower end compared to the upper end. A representative value of the data is around 16.

b.

Expert Solution

To determine

Sketch the dot plot of the percent of tests failing to meet water quality standards for the beaches in the other counties.

Explain the features of the dot plot.

Answer to Problem 33CR

The dot plot is given below:

Introduction To Statistics And Data Analysis, Chapter 1, Problem 33CR , additional homework tip 2

Explanation of Solution

Calculation:

Dotplot:

Software procedure:

Step-by-step procedure to obtain the dotplot using MINITAB software is given below:

Choose Graph > Dot plot.
Choose One Y-Simple and then click OK.
In Graph variables, enter the column of Other Counties.
Click OK.

From the dot plot, it is clear that, an unusually high value in the data is 40. Almost all the data points are lie between 0 and 17. Most of the observations are in the lower end compared to the upper end. A representative value of the data is around 3.

c.

Expert Solution

To determine

Compare the percent of tests failing to meet water quality standards for the beaches in the County LA and other counties

Explanation of Solution

From the dot plot obtained in Part (a) and (b), a representative value for County LA is around 16 and that of other countries are around 3. That is, the representative value is high for County LA. Both dotplots contain an extreme value. The distribution of County LA is nearly uniform. However, that of other countries are right skewed.

Answer 8

a.

Expert Solution

To determine

Sketch the dot plot of the percent of tests failing to meet water quality standards for the County LA.

Explain the features of the dot plot.

Answer to Problem 33CR

The dot plot is given below:

Introduction To Statistics And Data Analysis, Chapter 1, Problem 33CR , additional homework tip 1

Explanation of Solution

Calculation:

The given information is the water quality of 82 beaches in County LA and other counties.

Software procedure:

Step-by-step procedure to obtain the dotplot using MINITAB software is given below:

Choose Graph > Dot plot.
Choose One Y-Simple and then click OK.
In Graph variables, enter the column of Los Angeles County.
Click OK.

From the dot plot, it is clear that, an unusually high value in the data is 43. Almost all the data points are lie between 2 and 33. Most of the observations are in the lower end compared to the upper end. A representative value of the data is around 16.

Answer 9

a.

Expert Solution

Answer 10

a.

Expert Solution

Answer 11

Expert Solution

Answer 12

To determine

Sketch the dot plot of the percent of tests failing to meet water quality standards for the County LA.

Explain the features of the dot plot.

Answer 13

Answer to Problem 33CR

The dot plot is given below:

Introduction To Statistics And Data Analysis, Chapter 1, Problem 33CR , additional homework tip 1

Answer 14

Explanation of Solution

Calculation:

The given information is the water quality of 82 beaches in County LA and other counties.

Software procedure:

Step-by-step procedure to obtain the dotplot using MINITAB software is given below:

Choose Graph > Dot plot.
Choose One Y-Simple and then click OK.
In Graph variables, enter the column of Los Angeles County.
Click OK.

From the dot plot, it is clear that, an unusually high value in the data is 43. Almost all the data points are lie between 2 and 33. Most of the observations are in the lower end compared to the upper end. A representative value of the data is around 16.

Answer 15

b.

Expert Solution

To determine

Sketch the dot plot of the percent of tests failing to meet water quality standards for the beaches in the other counties.

Explain the features of the dot plot.

Answer to Problem 33CR

The dot plot is given below:

Introduction To Statistics And Data Analysis, Chapter 1, Problem 33CR , additional homework tip 2

Explanation of Solution

Calculation:

Dotplot:

Software procedure:

Step-by-step procedure to obtain the dotplot using MINITAB software is given below:

Choose Graph > Dot plot.
Choose One Y-Simple and then click OK.
In Graph variables, enter the column of Other Counties.
Click OK.

From the dot plot, it is clear that, an unusually high value in the data is 40. Almost all the data points are lie between 0 and 17. Most of the observations are in the lower end compared to the upper end. A representative value of the data is around 3.

Answer 16

b.

Expert Solution

Answer 17

b.

Expert Solution

Answer 18

Expert Solution

Answer 19

To determine

Sketch the dot plot of the percent of tests failing to meet water quality standards for the beaches in the other counties.

Explain the features of the dot plot.

Answer 20

Answer to Problem 33CR

The dot plot is given below:

Introduction To Statistics And Data Analysis, Chapter 1, Problem 33CR , additional homework tip 2

Answer 21

Explanation of Solution

Calculation:

Dotplot:

Software procedure:

Step-by-step procedure to obtain the dotplot using MINITAB software is given below:

Choose Graph > Dot plot.
Choose One Y-Simple and then click OK.
In Graph variables, enter the column of Other Counties.
Click OK.

From the dot plot, it is clear that, an unusually high value in the data is 40. Almost all the data points are lie between 0 and 17. Most of the observations are in the lower end compared to the upper end. A representative value of the data is around 3.

Answer 22

c.

Expert Solution

To determine

Compare the percent of tests failing to meet water quality standards for the beaches in the County LA and other counties

Explanation of Solution

From the dot plot obtained in Part (a) and (b), a representative value for County LA is around 16 and that of other countries are around 3. That is, the representative value is high for County LA. Both dotplots contain an extreme value. The distribution of County LA is nearly uniform. However, that of other countries are right skewed.

Answer 23

c.

Expert Solution

Answer 24

c.

Expert Solution

Answer 25

Expert Solution

Answer 26

To determine

Compare the percent of tests failing to meet water quality standards for the beaches in the County LA and other counties

Answer 27

Explanation of Solution

From the dot plot obtained in Part (a) and (b), a representative value for County LA is around 16 and that of other countries are around 3. That is, the representative value is high for County LA. Both dotplots contain an extreme value. The distribution of County LA is nearly uniform. However, that of other countries are right skewed.

Answer 28

Ch. 1.3 - Give brief definitions of the terms descriptive...Ch. 1.3 - Give brief definitions of the terms population and...Ch. 1.3 - The following conclusion from a study appeared in...Ch. 1.3 - Based on a study of 2 121 children between the...Ch. 1.3 - The student senate at a university with 15,000...Ch. 1.3 - The National Retail Federation used data from a...Ch. 1.3 - The supervisors of a rural county are interested...Ch. 1.3 - A consumer group conducts crash tests of new model...Ch. 1.3 - A building contractor has a chance to buy an odd...Ch. 1.3 - The article Brain Shunt Tested to Treat Alzheimers...

Videos

Answer to Problem 33CR

Explanation of Solution

Answer to Problem 33CR

Explanation of Solution

Explanation of Solution

Want to see more full solutions like this?

Chapter 1 Solutions