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or Charles | | Mail-Trevor Perry-Ou ) Do Homework - Trevor Perry - Google Chrome Secure ! https://wwww.mat aspx rkld 4599761168questionld10&uflushed-; true&icld; 472473 -yes lll Apps Bookmarks : atlab | Pearson TUESDAY I THURSDAY STT 315 Trevor Perry 11/13/17 10:16 PM Chegg Homework: Home work 10 - Chapter 6.3-6.4 Save Score: 0.75 of 3 pts 18 of 21 (14 complete) HW Score: 32.79%, 13.12 of 40 pts 6.4.46-T E Question Help Suppose data collected by observers at randomly selected intersections across the country revealed that in a sample of 100 drivers, 80 were using their cell phone a. Give a point estimate of p, the true driver cell phone use rate (that is, the true proportion of drivers who are using their cell phone while driving) b. Compute a 99% confidence interval for p c. Give a practical interpretation of the interval, part b My Ques,compute a99% confidence inte haanteer a par a. A point estimate for p is o.8 ESTION b, The 99% confidence interval for p is (D (Round to two decimal places as needed.) or Charles | | scnption ember 10) or Charles| Click to see or Charles Enter your answer in the edit fields and then click Check Answer Clear Al Check Answer remaining TUTORS CHAT 10:17 PM 11/13/2017Explanation / Answer
The statistical software output for this problem is:
One sample proportion summary confidence interval:
p : Proportion of successes
Method: Standard-Wald
99% confidence interval results:
Hence,
99% confidence interval for p will be:
(0.70, 0.90)
Proportion Count Total Sample Prop. Std. Err. L. Limit U. Limit p 80 100 0.8 0.04 0.69696683 0.90303317Related Questions
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