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For the regression analysis of the data in Exercise 15 81 a

For the regression analysis of the data in Exercise 15.81:

a. Use the 0.10 level in testing whether the population coefficient of correlation could be zero.

b. Use the 0.10 level in testing whether the population regression equation could have a slope of zero.

c. Construct the 90% confidence interval for the slope of the population regression equation. Discuss the interval in terms of the results of part (b).

a. Use the 0.10 level in testing whether the population coefficient of correlation could be zero.

b. Use the 0.10 level in testing whether the population regression equation could have a slope of zero.

c. Construct the 90% confidence interval for the slope of the population regression equation. Discuss the interval in terms of the results of part (b).

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