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In a hypothesis test for the population variance, the hypotheses are Ho: 2 = 30 vs. Hi: < 30. If the sample size is

In a hypothesis test for the population variance, the hypotheses are Ho: 2 = 30 vs. Hi: < 30. If the sample size is 20 and the test is being carried out at the 5% level of significance, the null hypothesis is rejected if: a. > 31.410. b. < 10.117. c. x2 > 10.851. d. < 30.144.

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