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The mean nicotine content of a simple random sample of 25 unfiltered king-size cigarettes is 1.26 mg, with a standard deviation of 0.23 mg. The mean nicotine content of a simple random sample of 25 filtered 100-mm cigarettes is 0.92 mg with a standard deviation of 0.25 mg. Use a 0.05 significance level to test the claim that unfiltered king-size cigarettes have a mean nicotine content greater than that of filtered 100-mm cigarettes.   The alternative hypothesis is The computed t-test statistic is The critical/tabular t-test statistic is Decision rule: The final conclusion is

The mean nicotine content of a simple random sample of 25 unfiltered king-size cigarettes is 1.26 mg, with a standard deviation of 0.23 mg. The mean nicotine content of a simple random sample of 25 filtered 100-mm cigarettes is 0.92 mg with a standard deviation of 0.25 mg. Use a 0.05 significance level to test the claim that unfiltered king-size cigarettes have a mean nicotine content greater than that of filtered 100-mm cigarettes.   The alternative hypothesis is The computed t-test statistic is The critical/tabular t-test statistic is Decision rule: The final conclusion is

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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The mean nicotine content of a simple random sample of 25 unfiltered king-size cigarettes is 1.26 mg, with a standard deviation of 0.23 mg. The mean nicotine content of a simple random sample of 25 filtered 100-mm cigarettes is 0.92 mg with a standard deviation of 0.25 mg. Use a 0.05 significance level to test the claim that unfiltered king-size cigarettes have a mean nicotine content greater than that of filtered 100-mm cigarettes.

 

The alternative hypothesis is

The computed t-test statistic is

The critical/tabular t-test statistic is

Decision rule:

The final conclusion is 

 

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