# Question: A Obtain a value of the t statistic for the

a. Obtain a value of the t statistic for the regression model of Exercise 11.86. Is there conclusive evidence that density is a predictor of sales?

b. Calculate a 95% confidence interval for the true value of the slope. The package should have calculated the standard error for you.

b. Calculate a 95% confidence interval for the true value of the slope. The package should have calculated the standard error for you.

## Relevant Questions

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