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12, 16, 21, 14, 21, 20, 17, 13, 18, 22 Find a 95% CI for the...

12, 16, 21, 14, 21, 20, 17, 13, 18, 22

Find a 95% CI for the population mean assuming the population variance is 12.  

From your CI above do you think the population mean could be 24? State Yes or No and why.

Find a 90% CI for the population mean assuming the population standard deviation is unknown.

From your CI above do you think the population mean could be 18?

State Yes or No and why.

Find a 90% CI for the population variance.

Math   Statistics-And-Probability   
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