Question: Textbook question. Need help in understanding how this is done. Not using for work other then to further understand the subject. 8.30 Suppose that, in

Textbook question. Need help in understanding how this is done. Not using for work other then to further understand the subject.

8.30 Suppose that, in a survey of 600 employers, 126 indicate that

they have used a recruitment service within the past two

months to find new staff.

a. Construct a 95% confidence interval for the population

proportion of employers who have used a recruitment

service within the past two months to find new staff.

b. Construct a 99% confidence interval for the population

proportion of employers who have used a recruitment

service within the past two months to find new staff.

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