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Families USA, a monthly magazine which discusses issues related to health and health costs, surveyed 20 of its subscribers. It found that annual health insurance premiums for family with coverage through the employer averaged $10,979. The standard deviation of sample was $1,000.

Based on this sample information, make a 90 percent confidence interval for population mean yearly premium.

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  • Category:- Statistics and Probability
  • Reference No.:- M917511

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