Question: Repeat Exercise 31 part (b), using a 99% confidence level and a margin of error of 2.5%. How does this sample size compare with your

Repeat Exercise 31 part (b), using a 99% confidence level and a margin of error of 2.5%. How does this sample size compare with your answer from Exercise 31 part (b)?

Exercise 31 part (b)

Find the minimum sample size needed, using a prior study that found that 63% of U.S. adults think that they should be saving more money.

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