In Exercises 15 and 16, use the data set from Appendix B.

Chapter 11, Problem 16

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In Exercises 15 and 16, use the data set from Appendix B. Secondhand Smoke Refer to Data Set 9 in Appendix B and use the measured serumcotinine levels (in mg/mL) from the three groups of subjects (smokers, nonsmokers exposedto tobacco smoke, and nonsmokers not exposed to tobacco smoke). When nicotine isabsorbed by the body, cotinine is produced. Use a 0.05 significance level to test the claim thatthe three samples are from populations with the same mean. What do the results suggest aboutthe effects of secondhand smoke?

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