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1 The personnel department of a large corporation wants to estimate the family dental expenses of its employees A random sample of 12 employees reveals

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1 The personnel department of a large corporation wants to estimate the family dental expenses of its employees A random sample of 12 employees reveals the following family dental expenses for the preceding year 15 17 18 13 14 16 17 14 21 25 19 16 Set up a 99 confidence interval estimate of the mean family dental expenses for all employees Critical Values Formula Mean Standard Dev C I E

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