8.19 Would you recommend the service to a friend? Refer to Exercise 8.16.

1. (a) Report the sample proportion, the standard error of the sample proportion, and the margin of error for 95% confidence.

2. (b) Are the guidelines for when to use the large-sample confidence interval for a population proportion satisfied in this setting? Explain your answer.

3. (c) Find the 95% large-sample confidence interval for the population proportion.

4. (d) Write a short statement explaining the meaning of you confidence interval.