Suppose that BC financial aid alots a textbook stipend by claiming that the average textbook at BC bookstore costs $$ 88.09. You want to test this claim. Based on a sample of 100 textbooks at the store, you find an average of 85.09 and a standard deviation of 19.8. The point estimate is:  (to 3 decimals) The 99 % confidence interval (use z*) is:  to  (to 3 decimals)

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