Mathematics, 26.11.2019 22:31 wittlemarie

Asmall stock brokerage firm wants to determine the average daily sales (in dollars) of stocks to their clients. a sample of the sales for 36 days revealed average daily sales of $200,000. assume that the standard deviation of the population is known to be $18,000.

a. provide a 95% confidence interval estimate for the average daily sale.

b. provide a 97% confidence interval estimate for the average daily sale.

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