Tests in one teacher’s past classes have scores with a standard
deviation equal to 14.1. One...
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Tests in one teacher’s past classes have scores with a standarddeviation equal to 14.1. One of their recent classes has 27 testscores with a standard deviation of 9.3. Use a 0.01 significancelevel to test the claim that this recent class has less variationthan past classes. (15 points) a. Hypothesis (steps 1-3): b. Valueof Test Statistic (steps 5-6): c. P-value (step 6): d. Decision(steps 4 and 7): e. Conclusion (step 8):
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a H0 141 H1 141b The test statistic n 1s2 26 9321412 11311c Pvalue
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