test and their scores on that test are shown below. Hours spent studying, x Test score. y (a) x=2 hours (c) x= 14 hours (b) x= 45 hours (d) x= 3.5 hours Find the regression equation. (Round the slope to three decimal places as needed. Round the y-intercept to two decimal places as needed.) Choose the correct graph below. OA OB. OD. Q Q Hours studying Hours studying a) Predict the value of y for x2 Choose the correct answer below. O A. 47.0 OB. 63.0 OC. 566 OD. not meaningful (b) Predict the value of y for x=4.5. Choose the correct answer below. O A. 63.0 OB. 1241 OC. 566 OD. not meaningful (c) Predict the value of y for x= 14. Choose the correct answer below. OA 1241 Click to select your answer(s).

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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Find the equation of the regression line for the given data. Then construct a scatter plot of the data and draw the regression line. (The pair of variables have a significant correlation.) Then use the regression equation to predict the value of y for each of the given x-values, if meaningful. The number of hours 6 students spent for a
test and their scores on that test are shown below.
Hours spent studying, x
Test score, y
2
3
4
(a) x = 2 hours
(b) x = 4.5 hours
39
43
51
49
61
71
(c) x = 14 hours
(d) x = 3.5 hours
Find the regression equation.
ý =x+ (O
(Round the slope to three decimal places as needed. Round the y-intercept to two decimal places as needed.)
Choose the correct graph below.
OA.
OB.
OC.
OD.
80-
80-
Hours studying
Hours studying
Hours studying
Hours studying
(a) Predict the value of y for x = 2. Choose the correct answer below.
O A. 47.0
О В. 63.0
О С. 56.6
O D. not meaningful
(b) Predict the value of y for x = 4.5. Choose the correct answer below.
O A. 63.0
О В. 124.1
O C. 56.6
O D. not meaningful
(c) Predict the value of y for x = 14. Choose the correct answer below.
O A. 124 1
Click to select your answer(s).
Testscore
Testscore
Transcribed Image Text:Find the equation of the regression line for the given data. Then construct a scatter plot of the data and draw the regression line. (The pair of variables have a significant correlation.) Then use the regression equation to predict the value of y for each of the given x-values, if meaningful. The number of hours 6 students spent for a test and their scores on that test are shown below. Hours spent studying, x Test score, y 2 3 4 (a) x = 2 hours (b) x = 4.5 hours 39 43 51 49 61 71 (c) x = 14 hours (d) x = 3.5 hours Find the regression equation. ý =x+ (O (Round the slope to three decimal places as needed. Round the y-intercept to two decimal places as needed.) Choose the correct graph below. OA. OB. OC. OD. 80- 80- Hours studying Hours studying Hours studying Hours studying (a) Predict the value of y for x = 2. Choose the correct answer below. O A. 47.0 О В. 63.0 О С. 56.6 O D. not meaningful (b) Predict the value of y for x = 4.5. Choose the correct answer below. O A. 63.0 О В. 124.1 O C. 56.6 O D. not meaningful (c) Predict the value of y for x = 14. Choose the correct answer below. O A. 124 1 Click to select your answer(s). Testscore Testscore
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