Cigarette taxes ~ Time magazine reported the result of a telephone poll of randomly selected adult...
Cigarette taxes ~ Time magazine reported the result of a telephone poll of randomly selected adult Americans. The poll asked these adult Americans: "Should the federal tax on cigarettes be raised to pay for health care reform?" The results of the survey showed that among 615 non-smokers, 315 had said “yes” and among 195 smokers, 41 had said “yes”.
We want to estimate the actual difference between the proportions of non-smokers and smokers who said “yes” to federal tax increase.
Notation: 1=non-smokers and 2=smokers.
To calculate a confidence interval for the difference p1-p2
in proportions, which formula would you use for the standard error?
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Cigarette taxes ~ Time magazine reported the
result of a telephone poll of randomly selected adult...
(12 points) Time magazine reported the result of a telephone poll of 800 adult Americans. The que...
(12 points) Time magazine reported the result of a telephone poll of 800 adult Americans. The question posed of the Americans who were surveyed was: "Should the federal tax on cigarettes be raised to pay for health care reform?" The results of the survey were: Non-Smokers Smokers Yes No 351 254 41 154 (a) (6 points) Is there sufficient evidence at the α-005 level to conclude that the two population proportions of people that agreed with the tax increase differ...
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(12 points) Time magazine reported the result of a telephone poll of 800 adult Americans. The question posed of the Americans who were surveyed was: "Should the federal tax on cigarettes be raised to pay for health care reform?" The results of the survey were: Non-Smokers Smokers Yes No 351 254 41 154 (a) (6 points) Is there sufficient evidence at the α-005 level to conclude that the two population proportions of people that agreed with the tax increase differ...
INCLUDE ALL 5 STEPS FOR EACH HYPOTHESIS TEST. FOR EACH PROBLEM, LABEL EACH STEP CLEARLY AS 1-5 1. NULL AND ALTERNATIVE HYPOTHESES 2. CRITICAL VALUE TEST VALUE 3. 4. DECISION 5. CONCLUSION FOR CONFIDENCE INTERVALS, PLEASE INCLUDE AN INTERPRETATION. We are XX% confident... Time magazine reported the result of a telephone poll of 800 adult Americans. The question 1 posed of the Americans who were surveyed was: "Should the federal tax on cigarettes be raised to pay for health care...
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Lung Cancer & Smoking Case Study A causal relationship between cigarette smoking and lung cancer was first suspected in the 1920s on the basis of clinical observations. To test this apparent association, numerous epidemiologic studies were undertaken between 1930 and 1960. Two studies were conducted by Richard Doll and Austin Bradford Hill in Great Britain The first was a case-control study begun in 1947 comparing the smoking habits of lung cancer patients with the smoking habits of other patients. The...
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