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?

Transcribed Image Text:

Percentage containing ads 37 43 58470 28 5 32 Price () 5.50 6.95 4.95 5.75 3.95 8.25 5.50 6.75