Hypothesis Testing of Mean: Tar content in cigarettes

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  305860 Hypothesis Using the data below and a 0.1 significance level test the claim that this mean amount of tar in filtered cigarettes is less than the mean amount of tar in unfiltered cigarettes.

• Hypothesis Testing for Samples

  Thus, the conclusion is that we reject the null hypothesis and conclude that the different brands of cigarettes do not have the same tar content. Now is alpha is 0.01, the critical value is now 4.10.

• hypothesis test with dependent t test

  Refer to the sample data given below: The mean tar content of a simple random sample of 25 unfiltered king-size cigarettes is 21.1 mg, with a standard deviation of 3.2 mg.

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  Use a 0.01 signifance level to test the claim that the median amount of tar in nonfiltered king size cigarettes is greater than the median amount of tar in 100 mm filtered cigarettes. (6) Tar in Cigarettes.

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  If a person smokes 10.0 packs of cigarettes a week and each cigarette contains 5.00 mg of tar, how many weeks will she have to smoke to inhale 0.250 pounds of tar? [Use: 20 cigarettes = 1 pack] f.

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