In each situation, explain why you think the sample proportion should or should

Question

In each situation, explain why you think the sample proportion should or should not be used to estimate the population proportion. An Internet news organization asks visitors to its website to respond to the question "Are you satisfied with the president's job performance?" Of n = 3500 respondents, 61% say they are not satisfied with the president's performance. Based on this survey, the organization writes an article in which they say that a majority of Americans are not satisfied with the president, A convenience sample of n = 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.

Explanation / Answer

a. The sample proportion should not be used to estimate the population proportion. The site visitors are not a representative sample of the whole population of Americans. For instance, Non Americans can also visit the site and respond to the survey

b. A convenience sample of two classes is not an apt representation of the population under considerations.The sampling should be random and should be from the nationwide population

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