The value of the sample correlation coefficient r for these data is approximately 0.890. Answer the following. Carry your intermediate computations to at least four decimal places, and round your answers as specified below. (If necessary, consult a list of formulas.) (a) What is the value of the slope of the least-squares regression line for these data? Round your answer to at least three decimal places. (b) What is the value of the y-intercept of the least-squares regression line for these data? Round your answer to at least three decimal places.

MATLAB: An Introduction with Applications
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The value of the sample correlation coefficient r for these data is approximately 0.890.
Answer the following. Carry your intermediate computations to at least four decimal places, and round your answers as specified below. (If necessary, consult a
list of formulas.)
(a) What is the value of the slope of the least-squares regression line for these data?
Round your answer to at least three decimal places.
(b) What is the value of the y-intercept of the least-squares regression line for these data?
Round your answer to at least three decimal places.
Transcribed Image Text:The value of the sample correlation coefficient r for these data is approximately 0.890. Answer the following. Carry your intermediate computations to at least four decimal places, and round your answers as specified below. (If necessary, consult a list of formulas.) (a) What is the value of the slope of the least-squares regression line for these data? Round your answer to at least three decimal places. (b) What is the value of the y-intercept of the least-squares regression line for these data? Round your answer to at least three decimal places.
A financial analyst is examining the relationship between stock prices and earnings per share. She chooses sixteen publicly traded companies at random and
records for each the company's current stock price and the company's earnings per share reported for the past 12 months. Her data are given below, with x
denoting the earnings per share from the previous year andy denoting the current stock price (both in dollars). A scatter plot of her data is shown in Figure 1.
Earnings per share, x
(in dollars)
Current stock price, y
(in dollars)
42.21
1.77
20.65
0.79
15.97
0.42
3+
34.03
1.78
42.52
1.56
2.5+
58.77
2.35
17.83
0.70
1.5+
30.45
1.52
58.21
2.82
35.83
1.55
0.5+
29.85
0.79
10
20
30
40
50
60
37.24
1.30
Earnings per share
(in dollars)
51.42
1.69
41.20
1.07
Figure 1
52.29
2.71
27.91
0.95
Send data to calculator
Send data to Excel
Current stock price
(in dollars)
Transcribed Image Text:A financial analyst is examining the relationship between stock prices and earnings per share. She chooses sixteen publicly traded companies at random and records for each the company's current stock price and the company's earnings per share reported for the past 12 months. Her data are given below, with x denoting the earnings per share from the previous year andy denoting the current stock price (both in dollars). A scatter plot of her data is shown in Figure 1. Earnings per share, x (in dollars) Current stock price, y (in dollars) 42.21 1.77 20.65 0.79 15.97 0.42 3+ 34.03 1.78 42.52 1.56 2.5+ 58.77 2.35 17.83 0.70 1.5+ 30.45 1.52 58.21 2.82 35.83 1.55 0.5+ 29.85 0.79 10 20 30 40 50 60 37.24 1.30 Earnings per share (in dollars) 51.42 1.69 41.20 1.07 Figure 1 52.29 2.71 27.91 0.95 Send data to calculator Send data to Excel Current stock price (in dollars)
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