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An administrator claims the standard deviation on a vocabulary test is greater than 45 points. A random sample of 25 test scores had a standard deviation of 46 points. Test the claim at a = 0.01. a. Set up hypotheses and determine the claim. b. Find the critical value(s) (n-1)s2 c. Determine the test statistic = 02 d. Decide whether the evidence supports the claim