5) the table shows the test scores and the sleep averages of several students. (10 points) test score (%) [88] [75] [76] [92] [96 [94] [83] [90] [99] [65] [77] [88] [82] [83] [94] [97] average sleep (h) [7] [6.5] [6] [7.5] [8] [7] [6.5] [8] [8.5] [5] [7] [9] [8] [8.5] [8.5] [9] points concept addressed 3 correct least squares regression equation 3 explanation of correlation coefficient is correct 4 correct test score is found using regression equation with all work shown a. write the least squares regression equation that models the data. let x = the test score and y = average sleep. b. find the correlation coefficient (r value). explain what this tells you about the association of the data. be sure to describe both the strength and direction in your explanation. c. use the equation to determine the approximate test score of a student who sleeps an average of 8 h a night. show your work.