Roper ASW conducted a survey to learn about American adults' attitudes toward money and happiness (Money, October

Question:

Roper ASW conducted a survey to learn about American adults' attitudes toward money and happiness (Money, October 2003). Fifty-six percent of the respondents said they balance their checkbook at least once a month.

a. Suppose a sample of400 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?

Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...