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As part of an annual review of its accounts, a discount brokerage selects a random sample...

As part of an annual review of its accounts, a discount brokerage selects a random sample of 31 customers. Their accounts are reviewed for total account valuation, which showed a mean of $34,500, with a sample standard deviation of $9,050. (Use t Distribution Table.)

What is a 95% confidence interval for the mean account valuation of the population of customers? (Round your answers to the nearest dollar amount.)

95% confidence interval for the mean account valuation is between _____ and _____

Math   Statistics-And-Probability   
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