Below is a table showing some of the results from the multiple regression analysis described in Exercise 15. Here we were attempting to link winning percentage (y) to daily practice time (x1), average speed of first serve (x2), and first serve percentage (x3) using data from a group of 12 professional tennis players who were monitored over the past year.
Build a 95% confidence interval estimate of each of the regression coefficients β1, β2 and β3.
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