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a simple random sample of 28 filtered 100-mm cigarettes is obtained from a normally distributed population...

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Statistics

a simple random sample of 28 filtered 100-mmcigarettes is obtained from a normally distributed population andthe tar content of each cigarette is measured. the samplehas a standarddeviation of 0.16mg.use a 0.05 significance level to test the claimthat the tar content of filtered 100-mm cigarettes has a standarddeviation different from 0.20 mg, which is the standard deviationfor unfiltered King size cigarettes

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4.0 Ratings (436 Votes)
H0 020H1 020The test statistic n 1s2 27 0162022 1728At alpha 005 the critical    See Answer
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