From data on a large sample of sales transactions, a small business owner reports that a 95%

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, p., is (23.41, 102.59). Use these data to determine
a. A point estimate (best guess) of the mean, p, and its 95% error margin.
b. A 90% confidence interval for the mean, p.