Question: From data on a large sample of sales transactions, a small business owner reports that a 95% confidence interval for the mean profit per transaction.

From data on a large sample of sales transactions, a small business owner reports that a 95% confidence interval for the mean profit per transaction. p. is (23.41. 102.59). Use these data to determine

a. A point estimate (best guess) of the mean u and its 95% error margin.

b. A 90% confidence interval for the mean u.

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