WebAssign Printed Access Card for Brase/Brase's Understandable Statistics: Concepts and Methods, 12th Edition, Single-Term
WebAssign Printed Access Card for Brase/Brase's Understandable Statistics: Concepts and Methods, 12th Edition, Single-Term
12th Edition
ISBN: 9781337652551
Author: Charles Henry Brase, Corrinne Pellillo Brase
Publisher: Cengage Learning
bartleby

Concept explainers

bartleby

Videos

Question
Book Icon
Chapter 3.2, Problem 18P

a.

To determine

Find the values x,x2,y, and y2 using calculator.

a.

Expert Solution
Check Mark

Answer to Problem 18P

The values of x=284.95_ and x2=7,046.80_.

The values of y=421.5_ and y2=14,562.29_.

Explanation of Solution

Step-by-step procedure to verify x and x2 using Ti83 calculator is given below:

  • Press STAT.
  • Select Edit.
  • Enter the values in L1.
  • Press STAT and Choose CALC.
  • Select 1-Var Stats.
  • To select the variable L1, Press 2-nd, and then press 1.
  • Press Enter.

Output obtained using the Ti83 calculator is given below:

WebAssign Printed Access Card for Brase/Brase's Understandable Statistics: Concepts and Methods, 12th Edition, Single-Term, Chapter 3.2, Problem 18P , additional homework tip  1

From the output, the values of x=284.95 and x2=7,046.80.

Step-by-step procedure to verify y and y2 using Ti83 calculator is given below:

  • Press STAT.
  • Select Edit.
  • Enter the values in L2.
  • Press STAT and Choose CALC.
  • Select 1-Var Stats.
  • To select the variable L2, Press 2-nd, and then press 2.
  • Press Enter.

Output obtained using the Ti83 calculator is given below:

WebAssign Printed Access Card for Brase/Brase's Understandable Statistics: Concepts and Methods, 12th Edition, Single-Term, Chapter 3.2, Problem 18P , additional homework tip  2

From the output, the values of y=421.5 and y2=14,562.29.

b.

To determine

Find the sample mean, variance, and standard deviation for x and y using the computation formula.

b.

Expert Solution
Check Mark

Answer to Problem 18P

The values of sample mean, variance, and standard deviation for x using the computation formula is 20.35, 96 and 9.79.

The values of sample mean, variance, and standard deviation for y using the computation formula is 28.1, 194 and 13.93.

Explanation of Solution

The sample variance using the computation formula is as follows:

s2=x2(x)2nn1

Where, x¯ is the mean, n is the number of values in the data, and x is the values in the data.

The sample standard deviation using the computation formula is as follows:

s=x2(x)2nn1

Where, x¯ is the mean, n is the number of values in the data, and x is the values in the data.

The sample mean for x is obtained below:

x¯=xn=284.9514=20.35

Thus, the sample mean is 20.35.

The sample variance for x using the computation formula is obtained below:

s2=7046.80(284.95)214141=96

Thus, the sample variance for x using the computation formula is 96.

The sample standard deviation for x using the computation formula is obtained below:

s=96=9.79

Thus, the sample standard deviation for x using the computation formula is 9.79.

The sample mean for y is obtained below:

y¯=yn=421.515=28.1

Thus, the sample mean is 28.1.

The sample variance for y using the computation formula is obtained below:

s2=14562.29(421.5)215151=194.1194

Thus, the sample variance for y using the computation formula is 194.

The sample standard deviation for y using the computation formula is obtained below:

s=194=13.93

Thus, the sample standard deviation for y using the computation formula is 13.93.

c.

To determine

Find the 75% Chebyshev interval around the mean for each fund.

Compare the two grids.

c.

Expert Solution
Check Mark

Answer to Problem 18P

The 75% Chebyshev interval around the mean for the Grid E is 0.77 and 39.93.

The 75% Chebyshev interval around the mean for the Grid H is 0.24 and 55.96.

Explanation of Solution

The 75% Chebyshev interval around the mean for the Grid Eis obtained below:

x¯2s=20.352(9.79)=0.77x¯+2s=20.35+2(9.79)=39.93

Thus, the 75% Chebyshev interval around the mean for the Grid E is 0.77 and 39.93.

The 75% Chebyshev interval around the mean for the Grid H is obtained below:

y¯2s=28.12(13.93)=0.24y¯+2s=28.1+2(13.93)=55.96

Thus, the 75% Chebyshev interval around the mean for the Grid H is 0.24 and 55.96.

From the result, it is observed that the 75% Chebyshev interval around the mean for the Grid H is wider when compared to the Grid E.

d.

To determine

Find and compare the coefficient of variation for x and y.

d.

Expert Solution
Check Mark

Answer to Problem 18P

The coefficient of variation for x is 48%.

The coefficient of variation for y is 50%.

Explanation of Solution

The formula for the coefficient of variation is as follows:

CV=sx¯×100%

Where, s is the sample standard deviation and x¯ is the sample mean.

The coefficient of variation for x is obtained below:

CV=9.7920.35×100%=48%

Thus, the coefficient of variation for x is 48%.

The coefficient of variation for y is obtained below:

CV=13.9328.1×100%=50%

Thus, the coefficient of variation for y is 50%.

From the results, the coefficient of variation for the Grid E is less when compared to the coefficient of variation for the Grid H. Hence, the Grid H has more buried artifacts.

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
You have been hired as an intern to run analyses on the data and report the results back to Sarah; the five questions that Sarah needs you to address are given below.   Does there appear to be a positive or negative relationship between price and screen size? Use a scatter plot to examine the relationship. Determine and interpret the correlation coefficient between the two variables. In your interpretation, discuss the direction of the relationship (positive, negative, or zero relationship). Also discuss the strength of the relationship. Estimate the relationship between screen size and price using a simple linear regression model and interpret the estimated coefficients. (In your interpretation, tell the dollar amount by which price will change for each unit of increase in screen size). Include the manufacturer dummy variable (Samsung=1, 0 otherwise) and estimate the relationship between screen size, price and manufacturer dummy as a multiple linear regression model. Interpret the…
Does there appear to be a positive or negative relationship between price and screen size? Use a scatter plot to examine the relationship. How to take snapshots: if you use a MacBook, press Command+ Shift+4 to take snapshots. If you are using Windows, use the Snipping Tool to take snapshots. Question 1: Determine and interpret the correlation coefficient between the two variables. In your interpretation, discuss the direction of the relationship (positive, negative, or zero relationship). Also discuss the strength of the relationship.  Value of correlation coefficient:   Direction of the relationship (positive, negative, or zero relationship):   Strength of the relationship (strong/moderate/weak): Question 2: Estimate the relationship between screen size and price using a simple linear regression model and interpret the estimated coefficients. In your interpretation, tell the dollar amount by which price will change for each unit of increase in screen size. (The answer for the…
In this problem, we consider a Brownian motion (W+) t≥0. We consider a stock model (St)t>0 given (under the measure P) by d.St 0.03 St dt + 0.2 St dwt, with So 2. We assume that the interest rate is r = 0.06. The purpose of this problem is to price an option on this stock (which we name cubic put). This option is European-type, with maturity 3 months (i.e. T = 0.25 years), and payoff given by F = (8-5)+ (a) Write the Stochastic Differential Equation satisfied by (St) under the risk-neutral measure Q. (You don't need to prove it, simply give the answer.) (b) Give the price of a regular European put on (St) with maturity 3 months and strike K = 2. (c) Let X = S. Find the Stochastic Differential Equation satisfied by the process (Xt) under the measure Q. (d) Find an explicit expression for X₁ = S3 under measure Q. (e) Using the results above, find the price of the cubic put option mentioned above. (f) Is the price in (e) the same as in question (b)? (Explain why.)

Chapter 3 Solutions

WebAssign Printed Access Card for Brase/Brase's Understandable Statistics: Concepts and Methods, 12th Edition, Single-Term

Ch. 3.1 - Critical Thinking When a distribution is...Ch. 3.1 - Critical Thinking Consider the following types of...Ch. 3.1 - Critical Thinking Consider the numbers 2 3 4 5 5...Ch. 3.1 - Prob. 14PCh. 3.1 - Prob. 15PCh. 3.1 - Prob. 16PCh. 3.1 - Prob. 17PCh. 3.1 - Critical Thinking Consider a data set of 15...Ch. 3.1 - Prob. 19PCh. 3.1 - Prob. 20PCh. 3.1 - Prob. 21PCh. 3.1 - Football: Age of Professional Players How old are...Ch. 3.1 - Prob. 23PCh. 3.1 - Prob. 24PCh. 3.1 - Prob. 25PCh. 3.1 - Prob. 26PCh. 3.1 - Prob. 27PCh. 3.1 - Prob. 28PCh. 3.1 - Expand Your Knowledge: Harmonic Mean When data...Ch. 3.1 - Prob. 30PCh. 3.2 - Statistical Literacy Which averagemean, median, or...Ch. 3.2 - Statistical Literacy What is the relationship...Ch. 3.2 - Statistical Literacy When computing the standard...Ch. 3.2 - Prob. 4PCh. 3.2 - Prob. 5PCh. 3.2 - Basic Computation: Range, Standard Deviation...Ch. 3.2 - Critical Thinking For a given data set in which...Ch. 3.2 - Prob. 8PCh. 3.2 - Prob. 9PCh. 3.2 - Prob. 10PCh. 3.2 - Prob. 11PCh. 3.2 - Critical Thinking: Outliers One indicator of an...Ch. 3.2 - Prob. 13PCh. 3.2 - Basic Computation: Coefficient of Variation,...Ch. 3.2 - Prob. 15PCh. 3.2 - Prob. 16PCh. 3.2 - Space Shuttle: Epoxy Kevlar epoxy is a material...Ch. 3.2 - Prob. 18PCh. 3.2 - Prob. 19PCh. 3.2 - Prob. 20PCh. 3.2 - Prob. 21PCh. 3.2 - Prob. 22PCh. 3.2 - Prob. 23PCh. 3.2 - Prob. 24PCh. 3.2 - Prob. 25PCh. 3.2 - Prob. 26PCh. 3.2 - Brain Teaser: Sum of Squares If you like...Ch. 3.2 - Prob. 28PCh. 3.2 - Prob. 29PCh. 3.2 - Prob. 30PCh. 3.3 - Statistical Literacy Angela took a general...Ch. 3.3 - Prob. 2PCh. 3.3 - Prob. 3PCh. 3.3 - Prob. 4PCh. 3.3 - Prob. 5PCh. 3.3 - Basic Computation: Five-Number Summary,...Ch. 3.3 - Health Care: Nurses At Center Hospital there is...Ch. 3.3 - Prob. 8PCh. 3.3 - Prob. 9PCh. 3.3 - Sociology: High School Dropouts What percentage of...Ch. 3.3 - Auto Insurance: Interpret Graphs Consumer Reports...Ch. 3.3 - Prob. 12PCh. 3 - Prob. 1CRPCh. 3 - Critical Thinking Look at the two histograms...Ch. 3 - Critical Thinking Consider the following Minitab...Ch. 3 - Prob. 4CRPCh. 3 - Political Science: Georgia Democrats How...Ch. 3 - Grades: Weighted Average Professor Cramer...Ch. 3 - Prob. 7CRPCh. 3 - Agriculture: Harvest Weight of Maize The following...Ch. 3 - Prob. 9CRPCh. 3 - Agriculture: Bell Peppers The pathogen...Ch. 3 - Performance Rating: Weighted Average A performance...Ch. 3 - Prob. 1DHCh. 3 - Prob. 2DHCh. 3 - Prob. 1UTCh. 3 - Prob. 1CURPCh. 3 - Describe how the presence of possible outliers...Ch. 3 - Prob. 3CURPCh. 3 - Prob. 4CURPCh. 3 - Prob. 5CURPCh. 3 - Prob. 6CURPCh. 3 - Prob. 7CURPCh. 3 - In west Texas, water is extremely important. The...Ch. 3 - Prob. 9CURPCh. 3 - Prob. 10CURPCh. 3 - Prob. 11CURPCh. 3 - In west Texas, water is extremely important. The...Ch. 3 - Prob. 13CURPCh. 3 - Prob. 14CURPCh. 3 - Prob. 15CURPCh. 3 - In west Texas, water is extremely important. The...Ch. 3 - Prob. 17CURP
Knowledge Booster
Background pattern image
Statistics
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Holt Mcdougal Larson Pre-algebra: Student Edition...
Algebra
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Text book image
Intermediate Algebra
Algebra
ISBN:9780998625720
Author:Lynn Marecek
Publisher:OpenStax College
Text book image
College Algebra
Algebra
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:Cengage Learning
Text book image
Algebra and Trigonometry (MindTap Course List)
Algebra
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:Cengage Learning
Text book image
College Algebra
Algebra
ISBN:9781938168383
Author:Jay Abramson
Publisher:OpenStax
Text book image
Algebra for College Students
Algebra
ISBN:9781285195780
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Cengage Learning
Statistics 4.1 Point Estimators; Author: Dr. Jack L. Jackson II;https://www.youtube.com/watch?v=2MrI0J8XCEE;License: Standard YouTube License, CC-BY
Statistics 101: Point Estimators; Author: Brandon Foltz;https://www.youtube.com/watch?v=4v41z3HwLaM;License: Standard YouTube License, CC-BY
Central limit theorem; Author: 365 Data Science;https://www.youtube.com/watch?v=b5xQmk9veZ4;License: Standard YouTube License, CC-BY
Point Estimate Definition & Example; Author: Prof. Essa;https://www.youtube.com/watch?v=OTVwtvQmSn0;License: Standard Youtube License
Point Estimation; Author: Vamsidhar Ambatipudi;https://www.youtube.com/watch?v=flqhlM2bZWc;License: Standard Youtube License