Assume that a sample is used to estimate a population mean μ . Find the 95% confidence interval for a sample of size 389 with a mean of 67.8. The population standard deviation of 14.4 Use critical value Z = 1.96 Round answer to 2 decimals

MATLAB: An Introduction with Applications
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Assume that a sample is used to estimate a population mean μ . Find the 95% confidence interval for a sample of size 389 with a mean of 67.8. The population standard deviation of 14.4 
Use critical value Z = 1.96
Round answer to 2 decimals 
 
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