# Question: The county finance department in Exercise 7 90 also wants information

The county finance department in Exercise 7.90 also wants information about renewals of disabled parking placards. Suppose that in a sample of 350 transactions for disabled parking placards, it was found that 250 were paid electronically.

a. What is the margin of error for a 99% confidence interval estimate of the population proportion of disabled renewal transactions paid electronically?

b. Without calculating, is the margin of error for a 95% confidence interval estimate of the population proportion of disabled renewal transactions paid electronically larger, smaller, or the same as that found in part a for a 99% confidence interval?

a. What is the margin of error for a 99% confidence interval estimate of the population proportion of disabled renewal transactions paid electronically?

b. Without calculating, is the margin of error for a 95% confidence interval estimate of the population proportion of disabled renewal transactions paid electronically larger, smaller, or the same as that found in part a for a 99% confidence interval?

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