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You Are Given the Following Data Regarding a Sample α\alpha = 005

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You are given the following data regarding a sample.
You are given the following data regarding a sample. a.Compute the mean and the variance. b.Using the critical value approach,test to determine if the variance of the population from which this sample is taken is significantly more than 12.Let \alpha = 0.05.
a.Compute the mean and the variance.
b.Using the critical value approach,test to determine if the variance of the population from which this sample is taken is significantly more than 12.Let α\alpha = 0.05.

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a.Sample mean = 15;Sample variance = 16....

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