# Question

The following table, reproduced from Exercise 13.28, lists the percentages of space for eight magazines that contain advertisements and the prices of these magazines.

a. Construct a 98% confidence interval for B. You can use the calculations made in Exercises 13.28 and 13.43 here.

b. Testing at the 5% significance level, can you conclude that B is different from zero?

a. Construct a 98% confidence interval for B. You can use the calculations made in Exercises 13.28 and 13.43 here.

b. Testing at the 5% significance level, can you conclude that B is different from zero?

## Answer to relevant Questions

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