Mathematics, 23.04.2021 16:50 scotrebe3626
A simple random sample of filtered 100-mm cigarettes is obtained from a normally distributed population, and the tar content of each cigarette is measured. The sample has a standard deviation of mg. Use a significance level to test the claim that the tar content of filtered 100-mm cigarettes has a standard deviation different from mg, which is the standard deviation for unfiltered king-size cigarettes. Complete parts (a) through (d) below. a. What are the null and alternative hypotheses?
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