In: Statistics and Probability
23.(8 pts) An algebra test is given to students at the beginning of a statistics course. The algebra test scores and the final statistics grades are collected for several randomly selected students and the results are given below. x = Algebra 80 78 75 63 84 y = Statistics 77 92 87 81 68 a. n = _____ r = ___________b0 =________ b1 = _____________ ?bar = __________
b. Test the claim that there is a linear correlation using the Critical Value Approach. c. Find the equation of the regression line. d. Predict the Statistics score when the Algebra score is 47.