Mathematics, 26.11.2019 23:31, levicorey846
In a sample of 610 boston-area residents selected on july 2, 209 reported that they were planning to travel beyond massachusetts for the july 4th holiday.
(a) use these data to find a 95% confidence interval for the proportion (p) of all boston-area residents who plan to travel beyond massachusetts for the holiday. [you may assume that the sample is random.]
(b) repeat part (a) but compute a 90% confidence interval for p.
(c) repeat part (a) but compute an 80% confidence interval for p.
(d) explain how the margins of error associated with your intervals in parts (a), (b), and (c) vary with the level of confidence (c) desired.
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