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Done Expert Q&A Problem Value: 4 points), Problem Score: 0%. Attempts Remaining: 2 attempts. (4 points) Lighting up - A Gallup poll on smoking began with the question "Have you, yourself, smoked any cigarettes in the past week?" The press release reported that "just 23% of Americans smoke." Later in the press release we read this: "The results are based of telephone interviews with a randomly selected national sample of 1,039 adults, 18 years and older, conducted September 23-26, 1999." Based on this information, correctly match the items below. B : 1. Statistic A. The actual percentage of telephone calls that resulted in an interview C $ 2 Sample B. The actual percentage of adults living in the US who smoked cigarettes in the past week D + 3. Population of C. The third week of September 1999 D. 1,039 adults living in the US interest E. All adults living in the US C : 4. Parameter F. 23%% of adults living in the US smoked cigarettes in the past week G. The number of cigarettes smoked by adults living in the US in the past weekProblem Value: 6 points). Problem Score: 25%. Attempts Remaining: 3 attempts. (8 points) No smoking! - The carbon monoxide in cigarette smoke is thought to be hazardous to the fetus of a pregnant woman who smokes. In a recent study of this theory, blood was drawn from a sample of six pregnant women before and after smoking a single cigarette. Measurements were made of the percent of hemoglobin bound to carbon monoxide as caboryhemoglobin (COHb), stable complex that inhibits the ability of the mother's blood to deliver oxygen to her and her child's body. The results are shown in the table below. Subject Before After Increase 1 1.2 19 0.7 2 1.8 3 1.4 2.2 0.8 4 1.8 2.8 5 1.4 2.2 0.8 1 1.6 0.6 Note: Submit all mowers rounded to at least 4 decimal places. The 1-VAR STATS function on your graphing calculator will be useful for this exercise. 1. Calculate the mean and standard deviation of increase in percent COMb resulting from smoking a cigarette. Sterns = 1.1632 EUROPEEN = 0 28922. Calculate the mean percent COHb both before and after smoking. The fore = 1.7164 Kafter = 2.8796 3. Is the mean increase in percent COHb from part 1 equal to the difference in the means of the before and after measurements? That is to say, is Xavier - Xbefore = Xincrease ? Yes + 4. Calculate the standard deviation of percent COHb both before and after smoking Shefore = 0.3403 Safter = 06116 5. is the standard deviation of the increase in percent COHb from part 1 equal to the difference in standard deviations of the before and after measurements? That is to say, is Safter - Shefare Sincrease? No : Help Entering Answers Preview My Answers Submit Answers
