In each situation, explain why you think that the sample proportion should or should not be used to estimate the population proportion.
a. An Internet news organization asks visitors to its website to respond to the question: “Are you satisfied with the president’s job performance?” Of 3500 respondents, 61% say that they are not satisfied with the president’s performance. On the basis of this survey, the organization writes an article saying that a majority of Americans are not satisfied with the president.
b. A convenience sample of 400 college students in two classes at the same university is used to estimate the proportion that is left-handed in the nationwide population of college students.

  • CreatedOctober 22, 2015
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