A Pharmaceutical Company Manufactures a 81-Mg Pain Reliever

question 101

Essay

A pharmaceutical company manufactures a 81-mg pain reliever. Company specifications include that thestandard deviation of the amount of the active ingredient must not exceed 2 mg. The quality -control managerselects a random sample of 30 tablets from a certain batch and finds that the standard deviation is 2.4 mg.Assume that the amount of the active ingredient is normally distributed. Test the claim that the standarddeviation of the amount of the active ingredient is greater than 2 mg at the α = 0.05 level of significance.

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