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Hand calculate response Time magazine reported the result of a telephone poll of 800 adult Americans. The question posed of the Americans who were surveyed

Hand calculate response

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:n1=605; 351 said "yes"
  • smokers: n2=195; 41 said "yes"

Is there sufficient evidence at the = 0.05 level to conclude that the two populations smokers and non-smokers differ significantly with respect to their opinions?

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