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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
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 0 2 2 4 4 5 (a) x = 2 hours (b) x =2.5 hours Test score, y 40 45 50 49 61 68 (c) x = 13 hours (d) x = 4.5 hours Find the regression equation. y = [x+(0 (Round the slope to three decimal places as needed. Round the y-intercept to two decimal places as needed.) Choose the correct graph below. O A. OB. O C. OD. 80 80- 80- 80- Testscore Testscore Testscore Testscore 8 8 0 8 8 Hours studying Hours studying Hours studying Hours studying(a) Predict the value of y for x = 2. Choose the correct answer below. O A. 48.1 O B. 50.5 O C. 60.4 O D. not meaningful (b) Predict the value of y for x = 2.5. Choose the correct answer below. O A. 60.4 O B. 50.5 O C. 102.4 O D. not meaningful(c) Predict the value of y for x = 13. Choose the correct answer below. O A. 50.5 O B. 102.4 O C. 48.1 O D. not meaningful (d) Predict the value of y for x = 4.5. Choose the correct answer below. O A. 48.1 O B. 102.4 O C. 60.4 O D. not meaningful
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