Date Apple Adjusted Stock Price P&G Adjusted Stock Price 6/1/2013 44.44 65.71 7/1/2013 50.71 68.54 8/1/2013 54.60 66.98 9/1/2013 56.00 65.00 10/1/2013 61.40 69.44 11/1/2013 65.32 72.99 12/1/2013 68.69 70.55 1/1/2014 61.29 66.40 2/1/2014 64.43 68.68 3/1/2014 68.57 70.38 4/1/2014 75.39 72.08 5/1/2014 80.87 71.11 6/1/2014 86.47 69.17 7/1/2014 88.95 68.05 8/1/2014 95.37 73.73 9/1/2014 94.21 74.29 10/1/2014 100.99 77.42 11/1/2014 111.21 80.84 12/1/2014 103.66 81.43 1/1/2015 110.03 75.35 2/1/2015 120.64 76.64 3/1/2015 117.32 73.77 4/1/2015 118.00 71.58 5/1/2015 122.84 71.14 6/1/2015 118.76 71.01 7/1/2015 114.85 69.61 8/1/2015 106.91 64.66 9/1/2015 104.91 65.82 10/1/2015 113.66 69.89 11/1/2015 112.51 69.09 12/1/2015 100.54 73.31 1/1/2016 92.98 75.42 2/1/2016 92.35 74.77 3/1/2016 104.67 76.65 4/1/2016 90.02 74.61 5/1/2016 95.90 76.09 6/1/2016 92.37 79.49 7/1/2016 100.69 80.36 8/1/2016 102.51 82.62 9/1/2016 109.82 84.92 10/1/2016 110.30 82.13 11/1/2016 107.36 78.63 12/1/2016 113.09 80.17 1/1/2017 118.49 83.53 2/1/2017 133.76 87.53 3/1/2017 140.88 86.35 4/1/2017 140.87 83.93 5/1/2017 149.80 85.31 6/1/2017 141.82 84.40 7/1/2017 146.45 87.95 8/1/2017 161.49 90.06 9/1/2017 152.36 88.80 10/1/2017 167.11 84.27 11/1/2017 169.88 88.49 12/1/2017 167.90 90.35 1/1/2018 166.11 84.90 2/1/2018 176.72 77.80 3/1/2018 167.14 78.55 4/1/2018 164.63 71.68 5/1/2018 187.86 74.31 The DATAfile StockComparison contains monthly adjusted stock prices for technology company Apple, Inc., and consumer-goods company Procter & Gamble (P&G) from 2013–2018. (a) Develop a scatter diagram with Apple stock price on the horizontal axis and P&G stock price on the vertical axis. A scatter diagram has a horizontal axis labeled "P&G Adjusted Stock Price" with values from 0 to 100 and a vertical axis labeled "Apple Adjusted Stock Price" with values from 0 to 200. The scatter diagram has 60 points. A pattern goes up and right from (65, 44) to (90, 188). A scatter diagram has a horizontal axis labeled "Apple Adjusted Stock Price" with values from 0 to 200 and a vertical axis labeled "P&G Adjusted Stock Price" with values from 0 to 100. The scatter diagram has 60 points. A pattern goes up and right from (44, 65) to (188, 90). A scatter diagram has a horizontal axis labeled "P&G Adjusted Stock Price" with values from 0 to 100 and a vertical axis labeled "Apple Adjusted Stock Price" with values from 0 to 200. The scatter diagram has 60 points. A pattern goes down and right from (65, 188) to (90, 44). A scatter diagram has a horizontal axis labeled "Apple Adjusted Stock Price" with values from 0 to 200 and a vertical axis labeled "P&G Adjusted Stock Price" with values from 0 to 100. The scatter diagram has 60 points. A pattern goes down and right from (44, 90) to (188, 65). (b) What appears to be the relationship between these two stock prices? The scatter diagram shows ---Select--- a negative no a positive relationship with ---Select--- higher lower no particular Apple stock prices associated with higher P&G stock prices. (c) Compute the sample covariance. (Round your answer to two decimal places.) Interpret the sample covariance. There is a positive relationship between the two variables.There is a negative relationship between the two variables. There is no relationship between the two variables. (d) Compute the sample correlation coefficient. (Round your answer to two decimal places.) What does this value indicate about the relationship between the stock price of Apple and the stock price of P&G? There is a moderately strong positive relationship between the two variables.There is a moderately strong negative relationship between the two variables. There is no relationship between the two variables.There is a positive relationship between the two variables, but the strength of this relationship cannot be determined based on the sample correlation coefficient.There is a negative relationship between the two variables, but the strength of this relationship cannot be determined based on the sample correlation coefficient.

Date Apple Adjusted Stock Price P&G Adjusted Stock Price 6/1/2013 44.44 65.71 7/1/2013 50.71 68.54 8/1/2013 54.60 66.98 9/1/2013 56.00 65.00 10/1/2013 61.40 69.44 11/1/2013 65.32 72.99 12/1/2013 68.69 70.55 1/1/2014 61.29 66.40 2/1/2014 64.43 68.68 3/1/2014 68.57 70.38 4/1/2014 75.39 72.08 5/1/2014 80.87 71.11 6/1/2014 86.47 69.17 7/1/2014 88.95 68.05 8/1/2014 95.37 73.73 9/1/2014 94.21 74.29 10/1/2014 100.99 77.42 11/1/2014 111.21 80.84 12/1/2014 103.66 81.43 1/1/2015 110.03 75.35 2/1/2015 120.64 76.64 3/1/2015 117.32 73.77 4/1/2015 118.00 71.58 5/1/2015 122.84 71.14 6/1/2015 118.76 71.01 7/1/2015 114.85 69.61 8/1/2015 106.91 64.66 9/1/2015 104.91 65.82 10/1/2015 113.66 69.89 11/1/2015 112.51 69.09 12/1/2015 100.54 73.31 1/1/2016 92.98 75.42 2/1/2016 92.35 74.77 3/1/2016 104.67 76.65 4/1/2016 90.02 74.61 5/1/2016 95.90 76.09 6/1/2016 92.37 79.49 7/1/2016 100.69 80.36 8/1/2016 102.51 82.62 9/1/2016 109.82 84.92 10/1/2016 110.30 82.13 11/1/2016 107.36 78.63 12/1/2016 113.09 80.17 1/1/2017 118.49 83.53 2/1/2017 133.76 87.53 3/1/2017 140.88 86.35 4/1/2017 140.87 83.93 5/1/2017 149.80 85.31 6/1/2017 141.82 84.40 7/1/2017 146.45 87.95 8/1/2017 161.49 90.06 9/1/2017 152.36 88.80 10/1/2017 167.11 84.27 11/1/2017 169.88 88.49 12/1/2017 167.90 90.35 1/1/2018 166.11 84.90 2/1/2018 176.72 77.80 3/1/2018 167.14 78.55 4/1/2018 164.63 71.68 5/1/2018 187.86 74.31 The DATAfile StockComparison contains monthly adjusted stock prices for technology company Apple, Inc., and consumer-goods company Procter & Gamble (P&G) from 2013–2018. (a) Develop a scatter diagram with Apple stock price on the horizontal axis and P&G stock price on the vertical axis. A scatter diagram has a horizontal axis labeled "P&G Adjusted Stock Price" with values from 0 to 100 and a vertical axis labeled "Apple Adjusted Stock Price" with values from 0 to 200. The scatter diagram has 60 points. A pattern goes up and right from (65, 44) to (90, 188). A scatter diagram has a horizontal axis labeled "Apple Adjusted Stock Price" with values from 0 to 200 and a vertical axis labeled "P&G Adjusted Stock Price" with values from 0 to 100. The scatter diagram has 60 points. A pattern goes up and right from (44, 65) to (188, 90). A scatter diagram has a horizontal axis labeled "P&G Adjusted Stock Price" with values from 0 to 100 and a vertical axis labeled "Apple Adjusted Stock Price" with values from 0 to 200. The scatter diagram has 60 points. A pattern goes down and right from (65, 188) to (90, 44). A scatter diagram has a horizontal axis labeled "Apple Adjusted Stock Price" with values from 0 to 200 and a vertical axis labeled "P&G Adjusted Stock Price" with values from 0 to 100. The scatter diagram has 60 points. A pattern goes down and right from (44, 90) to (188, 65). (b) What appears to be the relationship between these two stock prices? The scatter diagram shows ---Select--- a negative no a positive relationship with ---Select--- higher lower no particular Apple stock prices associated with higher P&G stock prices. (c) Compute the sample covariance. (Round your answer to two decimal places.) Interpret the sample covariance. There is a positive relationship between the two variables.There is a negative relationship between the two variables. There is no relationship between the two variables. (d) Compute the sample correlation coefficient. (Round your answer to two decimal places.) What does this value indicate about the relationship between the stock price of Apple and the stock price of P&G? There is a moderately strong positive relationship between the two variables.There is a moderately strong negative relationship between the two variables. There is no relationship between the two variables.There is a positive relationship between the two variables, but the strength of this relationship cannot be determined based on the sample correlation coefficient.There is a negative relationship between the two variables, but the strength of this relationship cannot be determined based on the sample correlation coefficient.

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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Date	Apple Adjusted Stock Price	P&G Adjusted Stock Price
6/1/2013	44.44	65.71
7/1/2013	50.71	68.54
8/1/2013	54.60	66.98
9/1/2013	56.00	65.00
10/1/2013	61.40	69.44
11/1/2013	65.32	72.99
12/1/2013	68.69	70.55
1/1/2014	61.29	66.40
2/1/2014	64.43	68.68
3/1/2014	68.57	70.38
4/1/2014	75.39	72.08
5/1/2014	80.87	71.11
6/1/2014	86.47	69.17
7/1/2014	88.95	68.05
8/1/2014	95.37	73.73
9/1/2014	94.21	74.29
10/1/2014	100.99	77.42
11/1/2014	111.21	80.84
12/1/2014	103.66	81.43
1/1/2015	110.03	75.35
2/1/2015	120.64	76.64
3/1/2015	117.32	73.77
4/1/2015	118.00	71.58
5/1/2015	122.84	71.14
6/1/2015	118.76	71.01
7/1/2015	114.85	69.61
8/1/2015	106.91	64.66
9/1/2015	104.91	65.82
10/1/2015	113.66	69.89
11/1/2015	112.51	69.09
12/1/2015	100.54	73.31
1/1/2016	92.98	75.42
2/1/2016	92.35	74.77
3/1/2016	104.67	76.65
4/1/2016	90.02	74.61
5/1/2016	95.90	76.09
6/1/2016	92.37	79.49
7/1/2016	100.69	80.36
8/1/2016	102.51	82.62
9/1/2016	109.82	84.92
10/1/2016	110.30	82.13
11/1/2016	107.36	78.63
12/1/2016	113.09	80.17
1/1/2017	118.49	83.53
2/1/2017	133.76	87.53
3/1/2017	140.88	86.35
4/1/2017	140.87	83.93
5/1/2017	149.80	85.31
6/1/2017	141.82	84.40
7/1/2017	146.45	87.95
8/1/2017	161.49	90.06
9/1/2017	152.36	88.80
10/1/2017	167.11	84.27
11/1/2017	169.88	88.49
12/1/2017	167.90	90.35
1/1/2018	166.11	84.90
2/1/2018	176.72	77.80
3/1/2018	167.14	78.55
4/1/2018	164.63	71.68
5/1/2018	187.86	74.31

The DATAfile StockComparison contains monthly adjusted stock prices for technology company Apple, Inc., and consumer-goods company Procter & Gamble (P&G) from 2013–2018.

(a)

Develop a scatter diagram with Apple stock price on the horizontal axis and P&G stock price on the vertical axis.

A scatter diagram has a horizontal axis labeled "P&G Adjusted Stock Price" with values from 0 to 100 and a vertical axis labeled "Apple Adjusted Stock Price" with values from 0 to 200. The scatter diagram has 60 points. A pattern goes up and right from (65, 44) to (90, 188).

A scatter diagram has a horizontal axis labeled "Apple Adjusted Stock Price" with values from 0 to 200 and a vertical axis labeled "P&G Adjusted Stock Price" with values from 0 to 100. The scatter diagram has 60 points. A pattern goes up and right from (44, 65) to (188, 90).

(b)

What appears to be the relationship between these two stock prices?

The scatter diagram shows ---Select--- a negative no a positive relationship with ---Select--- higher lower no particular Apple stock prices associated with higher P&G stock prices.

(c)

Compute the sample covariance. (Round your answer to two decimal places.)

Interpret the sample covariance.

There is a positive relationship between the two variables.There is a negative relationship between the two variables. There is no relationship between the two variables.

(d)

Compute the sample correlation coefficient. (Round your answer to two decimal places.)

What does this value indicate about the relationship between the stock price of Apple and the stock price of P&G?

There is a moderately strong positive relationship between the two variables.There is a moderately strong negative relationship between the two variables. There is no relationship between the two variables.There is a positive relationship between the two variables, but the strength of this relationship cannot be determined based on the sample correlation coefficient.There is a negative relationship between the two variables, but the strength of this relationship cannot be determined based on the sample correlation coefficient.

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