Question

****I would like to know how this was done long hand, please.

Smoke Data Set 12 "Passive and Active Smoke" in Appendix B includes cotinine levels measured in a group of nonsmokers exposed to tobacco 60.58 ng/mL, s 138.08 ng/mL) and a group of nonsmokers not exposed to tobacco smoke ( meaning that when nicotine is absorbed by the body, cotinine is produced. 16.35 ng/mL, s 62.53 ng/mL.). Cotinine is a metabolite of nicotine. n 40, a. Use a 0.05 significance level to test the have a higher mean cotinine level than nonsmokers not exposed to tobacco smoke. b. Construct the confidence interval appropriate for the hypothesis test in part(a) claim that nonsmokers exposed to tobacco smoke ax c. What do you conclude about the effects of second-hand smoke?

Answer 1

Caro to tobarto smoke mwokens epos4 nahdl ex pos e d o to bacco smoke We are to toot not-Dr.se.d totopart О .Smoker亼 Sm oke. S. 二 107-182.

lo3 1322 hwe aye enie the claim is net tone

to cons dudt Statistic T STI C By dne smy od contident e iuta val hre CT is k h 21 ニ60. B 8-16-35 + 107-192/ 68-14.

20-21 も) 68-t17 o bacco Smoke and Smokey