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A sample of 22 bottles of soft drink showed a variance of 0.64 in their contents. At the 5% level, and using the critical value

A sample of 22 bottles of soft drink showed a variance of 0.64 in their contents. At the 5% level, and using the critical value approach, determine whether or not the variance of the population is significantly different from 0.49.

a) What is your test statistic?

b) What are your critical values?

c) What is your conclusion - fail to reject the null hypothesis or reject the null hypothesis?

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