(Answered) Assume a sample of 400 american adults were taken. show the

Statistics

Roper ASW conducted a survey to learn about American adults' attitudes toward money and happiness. 56% of the respondents said they balance their checkbook at least once a month.

a. Assume a sample of 400 American adults were taken. Show the sampling distribution of the proportion of adults who balance their checkbook at least once a month.

b. What is the probability that the sample proportion will be within ± .02 of the population proportion?

c. What is the probability that the sample proportion will be within ± .04 of the population proportion?

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