Exercise 5 (Chs 9 & 10) 2 point 2019023 Mc Graw PYR Families USA, a monthly magazine that discusses issues related to he

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Exercise 5 Chs 9 10 2 Point 2019023 Mc Graw Pyr Families Usa A Monthly Magazine That Discusses Issues Related To He 1 (20.98 KiB) Viewed 42 times

Exercise 5 (Chs 9 & 10) 2 point 2019023 Mc Graw PYR Families USA, a monthly magazine that discusses issues related to health and health costs, surveyed 21 of its subscribers. I found that the annual health insurance premiums for a family with coverage through an employer averaged $11100. The standard deviation of the sample was $955, (Use Distribution Table & Distribution Table) Required: a. Based on this sample information, develop a 95% confidence interval for the population mean yearly premium. (Round your answers to the nearest whole dollar amount.) Condidonca aerval for the population mean yety premium n between b. How large a sample is needed to find the population mean within $235 at 98% confidence? (Round up your answer to the next whole number) Sample sin < Prev 2 of 5 # Next > Seve & Ext Submit