Chapter 8, Problem 2DHGP

Examine Figure 8-7. “Fall Back "

(a) Of the 1024 adults surveyed, 66% mere reported to favor daylight saving time. How many people in the sample preferred daylight saving time? Using the statistic $\hat{p}$ = 0.66 and sample size n = 1024, find a 95% confidence interval for the proportion of people p who favor daylight saving time. How could you report this information in terms of a margin of error?

(b) Look at Figure 8-7 to find the sample statistic $\hat{p}$ for the proportion of people preferring standard time. Find a 95% confidence interval for the population proportion p of people who favor standard time. Report the same information in terms of a margin of error