Refer to the previous exercise. Describe the relationship between margin of error and confidence level.

Data from previous Exercise

For each of the confidence intervals in the previous exercise, calculate and interpret the margin of error.

Data from previous Exercise

Of 1000 customers who received promotional materials for a marketing campaign, 100 responded to the promotion. For the following confidence levels, construct a confidence interval for the population proportion who would respond to the promotion.

a. 90%

b. 95%

c. 99%