An Internet retailer would like to investigate the relationship between the amount of time in minutes a purchaser spends on its Web site and the amount of money he or she spends on an order. The table to the right shows the data from a random sample of 12 customers. Construct a 99​% confidence interval for the regression slope. Time Order_Size 17 70 15 30 26 97 25 198 4 51 16 36 3 60 37 362 5 122 34 164 25 80 8 247 Construct a 99​% confidence interval for the slope. Please show how to do using Excel

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