PLEASE ANSWER ALL THE PARTS OF THE QUESTION (THIS IS NOT A GRADED ASSIGNMENT) (a) Construct a scatterplot for these data.Percent Changein Stock Price8060ELKE40Median20Worker115 120 125 130 135 140- 20PayiPercent Changein Stock Price80604020-20-40115 120 125 130 135 140MedianWorkerPayPercent Changein Stock Price80604020-20-40(b) Calculate the value of the correlation coefficient. (Round your answer to four decimal places.)Interpret the correlation coefficient.O There is no association between the percent change in stock price and median worker pay.O There is a moderate, negative association between the percent change in stock price and median worker pay.O There is a weak, positive association between the percent change in stock price and median worker pay.O There is a weak, negative association between the percent change in stock price and median worker pay.O There is a moderate, positive association between the percent change in stock price and median worker pay.-40115 120 125 130 135 140MedianWorkerPayiPercent Changein Stock Price80604020-20- 40115 120 125 130 135 140(c) The article states that companies that pay more are seeing a payoff in their stock performance. Is this conclusion justified based on these data? Explain.O The conclusion is not justified based on these data because there is no association between the variables.O The conclusion is not justified based on these data because there is a negative association suggesting that in general, as median worker pay increases, the percent change in stock price decreases.O The conclusion is not justified based on these data because there is a positive association suggesting that in general, as median worker pay increases, the percent change in stock price decreases.O The conclusion is justified based on these data because there is a negative association suggesting that in general, as median worker pay increases, so does the percent change in stock price.O The conclusion is justified based on these data because there is a positive association suggesting that in general, as median worker pay increases, so does the percent change in stock price.(d) Is it reasonable to generalize conclusions based on these data to the population of all conies in the United States? Explain why or why not.O The companies represent a random sample of companies from the population of all U.S. companies. Therefore, it is reasonable to generalize the results to all companies in the U.S.O The companies do not represent a random sample of companies from the population of all U.S. companies. Therefore, it is reasonable to generalize the results to all companies in the U.S.O The companies do not represent a random sample of companies from the population of all U.S. companies. Therefore, it is not reasonable to generalize the results to all companies in the U.S.O The strength the of the association is strong enough to allow one to generalize the results to all companies in the U.S.O The companies represent a random sample of companies from the population of all U.S. companies. Therefore, it is not reasonable to generalize the results to all companies in the U.S.MedianWorkerPayi An article gave the following data on median worker pay (in thousands of dollars) and the 1-year percent change in stock price for the 13 highest paying companies in the United States.CompanyCompany 1Company 2Company 3Company 4Company 5Company 6Company 7Company 8Company 9Company 10Company 11Company 12Company 13MedianWorker PayUSE SALT134.7132.2125.0122.8122.5121.2121.2119.0118.0118.0117.6117.4115.1(a) Construct a scatterplot for these data.Percent Changein Stock Price21.992.133.852.141.72.75.129.98.137.216.021.9-44.9

CompanyMedian Worker PayPercent Change in Stock…

An article gave the following data on median worker pay (in thousands of dollars) and the 1-year percent change in stock price for the 13 highest paying companies in the United States. Percent Change Median Worker Pay in Stock Price Company Company 1 Company 2 Company 3 Company 4 Company 5 Company 6 Company 7 Company 8 Company 9 Company 10 Company 11 Company 12 Company 13 134.7 132.2 125.0 122.8 122.5 121.2 121.2 119.0 118.0 118.0 117.6 117.4 115.1 21.9 92.1 33.8 52.1 41.7 2.7 5.1 29.9 8.1 37.2 16.0 21.9 -44.9

An article gave the following data on median worker pay (in thousands of dollars) and the 1-year percent change in stock price for the 13 highest paying companies in the United States. Percent Change Median Worker Pay in Stock Price Company Company 1 Company 2 Company 3 Company 4 Company 5 Company 6 Company 7 Company 8 Company 9 Company 10 Company 11 Company 12 Company 13 134.7 132.2 125.0 122.8 122.5 121.2 121.2 119.0 118.0 118.0 117.6 117.4 115.1 21.9 92.1 33.8 52.1 41.7 2.7 5.1 29.9 8.1 37.2 16.0 21.9 -44.9

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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Question

PLEASE ANSWER ALL THE PARTS OF THE QUESTION (THIS IS NOT A GRADED ASSIGNMENT)

(a) Construct a scatterplot for these data.
Percent Change
in Stock Price
80
60
ELKE
40
Median
20
Worker
115 120 125 130 135 140
- 20
Pay
i
Percent Change
in Stock Price
80
60
40
20
-20
-40
115 120 125 130 135 140
Median
Worker
Pay
Percent Change
in Stock Price
80
60
40
20
-20
-40
(b) Calculate the value of the correlation coefficient. (Round your answer to four decimal places.)
Interpret the correlation coefficient.
O There is no association between the percent change in stock price and median worker pay.
O There is a moderate, negative association between the percent change in stock price and median worker pay.
O There is a weak, positive association between the percent change in stock price and median worker pay.
O There is a weak, negative association between the percent change in stock price and median worker pay.
O There is a moderate, positive association between the percent change in stock price and median worker pay.
-40
115 120 125 130 135 140
Median
Worker
Pay
i
Percent Change
in Stock Price
80
60
40
20
-20
- 40
115 120 125 130 135 140
(c) The article states that companies that pay more are seeing a payoff in their stock performance. Is this conclusion justified based on these data? Explain.
O The conclusion is not justified based on these data because there is no association between the variables.
O The conclusion is not justified based on these data because there is a negative association suggesting that in general, as median worker pay increases, the percent change in stock price decreases.
O The conclusion is not justified based on these data because there is a positive association suggesting that in general, as median worker pay increases, the percent change in stock price decreases.
O The conclusion is justified based on these data because there is a negative association suggesting that in general, as median worker pay increases, so does the percent change in stock price.
O The conclusion is justified based on these data because there is a positive association suggesting that in general, as median worker pay increases, so does the percent change in stock price.
(d) Is it reasonable to generalize conclusions based on these data to the population of all co
nies in the United States? Explain why or why not.
O The companies represent a random sample of companies from the population of all U.S. companies. Therefore, it is reasonable to generalize the results to all companies in the U.S.
O The companies do not represent a random sample of companies from the population of all U.S. companies. Therefore, it is reasonable to generalize the results to all companies in the U.S.
O The companies do not represent a random sample of companies from the population of all U.S. companies. Therefore, it is not reasonable to generalize the results to all companies in the U.S.
O The strength the of the association is strong enough to allow one to generalize the results to all companies in the U.S.
O The companies represent a random sample of companies from the population of all U.S. companies. Therefore, it is not reasonable to generalize the results to all companies in the U.S.
Median
Worker
Pay
i

An article gave the following data on median worker pay (in thousands of dollars) and the 1-year percent change in stock price for the 13 highest paying companies in the United States.
Company
Company 1
Company 2
Company 3
Company 4
Company 5
Company 6
Company 7
Company 8
Company 9
Company 10
Company 11
Company 12
Company 13
Median
Worker Pay
USE SALT
134.7
132.2
125.0
122.8
122.5
121.2
121.2
119.0
118.0
118.0
117.6
117.4
115.1
(a) Construct a scatterplot for these data.
Percent Change
in Stock Price
21.9
92.1
33.8
52.1
41.7
2.7
5.1
29.9
8.1
37.2
16.0
21.9
-44.9

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Step 1: Given data:

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Step 2: Construct a scatterplot:

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Step 3: Compute the correlation coefficient:

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Step 4: Identify the correct conclusion for part (c):

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Step 5: Identify the correct statement for part (d):

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