Mathematics, 10.09.2019 20:30 noobieplayerxd

The personnel department of a large corporation wants to estimate the family dental expenses of its employees to determine the feasibility of providing a dental insurance plan. a random sample of 12 employees reveals the following family dental expenses (in dollars): 115, 370, 250, 593, 540, 225, 177, 425, 318, 182, 275, and 228. construct a 95% confidence interval estimate for the standard deviation of family dental expenses for all employees of this corporation

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