As part of an annual review of its accounts, a discount brokerage chooses random sample of 36 customers. Their accounts are reviewed for total account valuation, which showed a mean of $32,000, with a sample standard deviation of $8,200.
What is a 90 percent confidence interval for the mean account valuation of the population of customers? (Round your answers to the nearest dollar amount. Omit the "tiny_mce_markerquot; sign in your response.)
90 percent confidence interval for the mean account valuation is between $ and $.