The high school female athlete strength study also considered prediction of y = maximum leg press (LP) using x = number of 200-pound leg presses (LP_200). MINITAB results of a regression analysis are shown.

a. Show all steps of a two-sided significance test of the hypothesis of independence.
b. Find a 95% confidence interval for the true slope. What do you learn from this that you cannot learn from the significance test in part a?

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The regre ssion equation is LP=234 + 5.27Lr_200 Predictor Coef SE Coef Constant 233.89 13.06 17.90 .000 LP 200 R-Sq 62.8% 5.2710 0.5469 9.64 0.000