Question: Find a 95% confidence interval for the variance of a normal population from the sample: The sample in Prob. 9 Data from Prob. 9 Find

Find a 95% confidence interval for the variance of a normal population from the sample:

The sample in Prob. 9

Data from Prob. 9

Find a 99% confidence interval for the mean of a normal population from the sample:

Copper content (%) of brass 66, 66, 65, 64, 66, 67, 64, 65, 63, 64

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