3. Evaluate the data in the table. Make a conclusion.Primary disability of various population groups from individual causes(per 10,000 of the corresponding population)Class of diseasesNeoplasmsInjuryadult population20009,25,6current year10,06,0working-age populationcurrent year20008,66,210,08,0

The table provides the primary disability of two different population groups (adult and working-age)…

Answered: 3. Evaluate the data in the table. Make…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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3. You would like to determine if there is a statistical relationship between the amount of caffein in a cup of coffee and their sales at their coffee franchises. The data is included in the set "Coffee by the Cup". Here is information about the variables. Variable Caffeine Cups Sold Measurement Amount of caffeine in one cup Number of cups of the coffee Units Milligrams Cups sold sold at all of the franchises a. Which variable is the explanatory variable and which variable is the response variable? b. Construct a scatterplot of the data. Based upon the scatterplot is there a linear relationship between the amount of caffeine in one cup of the coffee and the number of cups of coffee sold? Justify your reasoning using the scatterplot. c. Run a t-test for correlation using technology. Make sure you include the p-value and the printout. According to the t-test, is there a statistical relationship between the amount of caffeine in a cup of coffee and the number of cups sold? Justify your…
Exhibit 11-2 Last school year, the student body of a local university consisted of 30% freshmen, 24% sophomores, 26% juniors, and 20% seniors. A sample of 300 students taken from this year's student body showed the following number of students in each classification. Freshmen 83 Sophomores 68 Juniors 85 Seniors 64 We are interested in determining whether or not there has been a significant change lin the classifications between the last school year and this school year. Refer to Exhibit 11-2. The expected number of freshmen is
Example 6. Draw a histogram for the following data on the size of families : No. of children : No. of families : 171 1 2 3 4 5 6 50 25 13 7 2
7. In the field of statistics, give an example of: a. A discrete variable. b. A continuous variable. c. A qualitative variable.
9. Find Lower quartile, Median, Upper quartile, 6th decile, 95th percentile, 4th quartile from the following data. Classes 32 Frequency 3 30- 32- 34- 36- 38- 40- 42- 44- 46- 48- 40 38 50 31 42 44 34 36 24 46 48 50 21 38 12 2 61
This table represents the first 8 observations from a sample of 200 individuals, who reported their age, race, income, and job satisfaction score on a scale from 0 to 100. Age W Race Income Score less than $10,000 $20,000-23,000 more than $100,000 84 $30,000-40,000 $10,000-20,000 $40,000-50,000 $50,000-60,000 less than $10,000 21 29 33 В 32 41 В 26 A 78 22 87 19 A 42 34 W 21 26 W 91
The table to the right gives the cost of living index (COLI) for six East Coast counties and six Midwest counties (using an index where 100 represents the average cost of living for all A participating cities with a population of more than 1.5 million). Answer parts (a) through (e) below. B a. Find the mean, median, and range for each of the two data sets. The mean for the East Coast Counties is (Type an integer or decimal rounded to two decimal places as needed.) EUCEY с D F East Coast Counties 104.9 128.7 314.2 134.1 123.5 141.1 DYWXYN Midwest Counties 96.2 92.7 94.4 87.3 95.8 228.3
The two, box and whisker diagrams below show the percentage marks obtained by two Grade 12 classes. Each class has 26 learners. Class A Class B O 10 20 30 40 50 60 70 80 90 100 The percentage marks for Class A, arranged in order, are given below: F: 58 60 62 62 63 65 65 66 66 66 66 67 69 70 71 73 73 90 [SASAMS database] 75 75 75 H 80 83 85 NOTE: Fis the lowest percentage mark H is a percentage mark between 75 and 80
6. The trade volume of a stock is the number of shares traded on a given day. The data in the first accompanying table, in millions (so that 6.22 represents 6,220,000 shares traded), represent the volume of a certain stock traded for a random sample of 40 trading days in a certain year. A second random sample of 40 days in the same year resulted in the data in second accompanying table. Complete parts (a) through (d) below. Click here to view the data for the first sample. Click here to view the data for the second sample.11 Click here to view the table of critical t-values.12 10 (a) Use the data from the first sample to compute a point estimate for the population mean number of shares traded per day in the year. A point estimate for the population mean number of shares traded per day in the year is million. (Round to three decimal places as needed.) (b) Using the data from the first sample, construct a 95% confidence interval for the population mean number of shares traded per day in…
Full data set 3. The data to the right represent the number of chocolate chips per cookie in a random sample of a name brand and a store brand. Complete parts (a) to (c) below. Name Brand Store Brand 22 29 24 22 28 23 25 22 17 28 24 35 32 28 33 27 23 31 26 28 15 24 23 21 (a) Draw side-by-side boxplots for each brand of cookie. Label the boxplots "N" for the name brand and "S" for the store brand. Choose the correct answer below. O A. OB. OC. N- S- 30 40 40 (b) Does there appear to be a difference in the number of chips per cookie? O A. Yes. The store brand appears to have more chips per cookie. O B. Yes. The name brand appears to have more chips per cookie. O C. No. There appears to be no difference in the number of chips per cookie. O D. There is insufficient information to draw a conclusion. (c) Does one brand have a more consistent number of chips per cookie? O A. Yes. The store brand has a more consistent number of chips per cookie. B. No. Both brands have roughly the same number…
This table represents the first 8 observations from a sample of 200 individuals, who reported their age, race, income, and job satisfaction score on a scale from 0 to 100. Age W Race Income Score less than $10,000 $20,000-23,000 more than $100,000 84 $30,000-40,000 $10,000-20,000 $40,000-50,000 $50,000-60,000 less than $10,000 21 29 33 В 32 41 В 26 A 78 22 87 19 A 42 34 W 21 26 W 91
The amount of money earned in a day by Ms. Anne’s craft shop was recorded and displayed in the stem-and-leaf diagram shown below in Exhibit 1. Exhibit 1 Stem-and-leaf of Data: Amount of Money earned in a day in dollars Leaf Unit = 10 N = * 2 2595 323413 3 55779999 (**) 4 0001233 14 4 5569 *** 5 033445 5 7788 161 What is the median of the distribution? Use the stem-and-leaf diagram above to draw a box-and-whisker diagram. Comment on the skewness of the distribution.

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