The paired data shown consists of tests scores and hours of preparation for 5 randomly selected students. The equation of the regression line is y-hat = 44.845 + 3.524x and the standard error of estimate is s_e= 5.40 Find the 99% prediction interval for the test score of a person who spent 7 hours preparing for the test x = Hour of preparation y = Test Score x 5 2 9 6 10 y 64 48 72 73 80 a) 58 < y < 82 b) 35 < y < 104 c) 32 < y < 107 d) 62 < y < 78
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We are given the equation of the regression line: y-hat = 44.845 + 3.524x. This means that for every additional hour of preparation, the predicted test score increases by 3.524 points. Show more…
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