M8: Problem Set 2
Due No due date Points 0 Questions 1 Time Limit None
This quiz is currently locked.
Attempt History
Attempt Time Score
LATEST Attempt 1 26 minutes 0 out of 0
Score for this quiz: 0 out of 0
Submitted Sep 14, 2020 at 10:59am
This attempt took 26 minutes.
Question 1 pts
Suppose we have independent random samples of size n1 = 780 and n2 =
700. The number of successes in the two samples were x1= 538 and x2 =
434. Find the 95% confidence interval for the difference in the two
population proportions.
Your Answer:
z=1.96
p1 =x1/n1=538/780 = .6897
p2= x2/n2= 434/700=.62
This study source was downloaded by 100000832361371 from CourseHero.com on 04-15-2022 00:00:57 GMT -05:00
https://portagelearning.instructure.com/courses/169/quizzes/6719?module_item_id=18114 1/2
https://www.coursehero.com/file/79208220/M8-Problem-Set-2-Introduction-to-Statisticspdf/