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QUESTION
we wish to develop a confidence interval for the population mean. the population standard deviation in known. we have a sample of 40 observations. we...
we wish to develop a confidence interval for the population mean. the population standard deviation in known. we have a sample of 40 observations. we decide to use the 92 percent level of confidence. the appropriate value of z is: a. 1.96, b. 1.65, c. 2.58, d. 1.75
