In: Statistics and Probability
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, 1, 2, 4, 5, 6
Test score, y: 39, 44, 51, 49, 63, 72
(a) x = 2 hours (b) x = 2.5 hours (c) x = 13 hours (d) x = 3.5 hours