1. if xbar = 85, o= 8, and n=64, construct a 95% confidence interval estimate for the population mean, u2. standard deviation is 1,000. a random sample of 64, sample mean of 7500:a. 95% confidence interval estimateb. do you think there is a mean life of 8,000 explainc. normally distributed? explaind. suppose stdev changes to 800, what are the answers for a and b
This question was answered on: May 23, 2022
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