# Question

For the regression line developed in Exercise 15.38,

a. Use the 0.05 level in testing whether the population coefficient of correlation could be zero.

b. Use the 0.05 level in testing whether the population regression equation could have a slope of zero.

c. Construct the 95% confidence interval for the slope of the population regression equation.

a. Use the 0.05 level in testing whether the population coefficient of correlation could be zero.

b. Use the 0.05 level in testing whether the population regression equation could have a slope of zero.

c. Construct the 95% confidence interval for the slope of the population regression equation.

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