Question
A simple random sample of 60 items resulted in a sample mean of 81. The population...
A simple random sample of 60 items resulted in a sample mean of 81. The population standard deviation is 13.
a. Compute the 95% confidence interval for the population mean (to 1 decimal).
b. Assume that the same sample mean was obtained from a sample of 120 items. Provide a 95% confidence interval for the population mean (to 2 decimals).
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Answer #1
b)
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