A simple random sample of 28 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 0.22 mg. Use a 0.05 significance level to test the claim that the tar content of filtered 100-mm cigarettes has a standard deviation different from 0.35 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? O A. Ho: o = 0.35 mg H,: o<0.35 mg B. Ho: o = 0.35 mg H:0+0.35 mg O C. Ho: o > 0.35 mg O D. Ho: o + 0.35 mg H1: o = 0.35 mg H1:os0.35 mg

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