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Economics and Finance An economist believes that a credit card company sets the spending limits…

Economics and Finance An economist believes that a credit card company sets the spending limits for customers based on loyalty, that is, the number of years the customer has been a cardholder. A random sample of 22 cardholders was selected. The number of years since obtaining the card (x) was recorded as well as the spending limit (y, in thousands of dollars) on the card. The summary statistics are given below.

Economics and Finance An economist believes that a credit card company sets the spending limits...

a. Find the estimated regression line.

b. Estimate the true mean spending limit for a customer who has had this credit card for ten years.

c. Find an estimate of an observed value of the spending limit for a customer who has had this credit card for two years