Quiz: Module 5 Quiz This Question: 1 pt An experiment was conducted to test the

Question

Quiz: Module 5 Quiz This Question: 1 pt An experiment was conducted to test the effects of alcohol Errors Treatment Placebol were recorded in a test of visual and motor skills for a treatment group who drank ethanol and a placebo group Construct a 95% |n| 19 | 19 confidence interval of the difference between the two population means. Do not assume the population standard deviations arex365 189 equal Do the results support the belief that drinking is hazardous for drivers, pilots, captains, and so on? 1.960.97 Click the icon to view the table of critical values Find the 95% confidence interval. D:1-P2«D(Round to three decimal places as needed ) Does the confidence interval show that drinking is hazardous? A. B. ° C. D. No, because the confidence interval includes zero Yes, because the confidence interval does not include zero No, because the confidence interval does not include zero Yes, because the confidence interval includes zero Click to select your answer(s)

Explanation / Answer

Using result,the 95% confidence interval is given by (0.729, 2.791) . As,this confidence interval does not include 0,so we conclude that there is sufficient evidence that drinking is hazardous

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