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You wish to test the claim that the variance is 21.5 at a level of significance...

You wish to test the claim that the variance is 21.5 at a level of significance of 5%. You select a random sample of 12 people and find the variance is 18. Assume this is a normal distribution. Compute the value of the standardized test statistic. Round your answer to the thousandths place. State the answer only and no additional work. Make sure to round to the correct place. Rounding to the wrong place will result in you missing the question.

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