We wish to develop a confidence interval for the population mean. - 6019

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Request Description

We wish to develop a confidence interval for the population mean. The population follows the normal distribution, the standard deviation of the population is 3, and we have a sample of 10 observations. We decide to use the 90 percent level of confidence. The appropriate value of to represent the level of confidence is

a. z =1.65

b. z = 1.96

c. t = 1.833

d. t = 1.812

 
Solution Description

We wish to develop a confidence interval for the population mean. The population fo