Suppose that for a dataset the mean is known. Using the 25 random samples, we computed...

Suppose that for a dataset the mean is known. Using the 25 random samples, we computed the sample variance as s^2=0.001.
a) Does the data support the claim that the true standard deviation is less than 0.05? (use alpha = 0.05 and alternative hypothesis sigma^2 < 0.0025)
b) Compute a two-sided 95% confidence interval for the true variance of the data.

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milcah answered 11 months ago

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