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Mathematics, 01.04.2021 23:40 pam93
A popular consumer magazine gave the following information about annual premiums (in dollars) for 18 renewable life insurance policies with similar benefits. The sample mean was found to be $413.94 with a standard deviation of $102.88. Assume that annual premiums follow an approximate bell-shaped distribution. Find a 90% confidence interval for the population mean of all annual premiums for such life insurance policies.
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