subject
Mathematics, 10.04.2021 05:40 granthazenp5e9mj

Melina works on the campaign of a political candidate. She suspected that voters in district 1 were more likely to support her candidate than voters in district 2. She obtained separate random samples of voters from each
district. Here are the results:
Supports candidate?
District 1
District 2
Yes
64
96
No
36
104
Total
100
200
Melina wants to use these results to construct a 90% confidence interval to estimate the difference in the
proportion of voters in these districts who support her candidate (p1 - pa). Assume that all of the conditions
for inference have been met.
Which of the following is a correct 90% confidence interval based on Melina's samples?

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 17:20
Four airplanes carrying a total of 400 passengersarrive at the detroit airport. the airplanes carry, respectively,50, 80, 110, and 160 passengers.a) one of the 400 passengers is selected uniformly at random.let x denote the number of passengers that were on theairplane carrying the randomly selected passenger. find var(x)for x as given in the problemb) one of the 4 airplane drivers is also selected uniformly atrandom. let y denote the number of passengers on the chosen driver’s airplane. find var(y) for y as given in the problem
Answers: 3
question
Mathematics, 21.06.2019 23:30
The bottom of ignacio's desktop is 74.5cm from the floor. ignacios sits in his adjustable chair, and the tops of his legs are 49.3cm from the floor. each clockwise rotation of the knob on the chair raises ignacio's legs by 4.8cm. write an inequality to determine the number of clockwise rotations, r, ignacio could make with the knob without his legs touching the desk.
Answers: 3
question
Mathematics, 22.06.2019 00:00
Aclothing designer is selecting models to walk the runway for her fashion show. the clothes she designed require each model’s height to be no more than y inches from 5 feet 10 inches, or 70 inches. which graph could be used to determine the possible variance levels that would result in an acceptable height, x?
Answers: 2
question
Mathematics, 22.06.2019 00:10
Solve for b. ab + c= d b= a + old ob=allc-ch b= (d-c/a
Answers: 3
You know the right answer?
Melina works on the campaign of a political candidate. She suspected that voters in district 1 were...
Questions
question
Mathematics, 02.11.2019 22:31
question
Mathematics, 02.11.2019 22:31
question
Mathematics, 02.11.2019 22:31
Questions on the website: 13722361