subject
Mathematics, 13.05.2021 17:20 Lilbre9444

A political candidate feels that she performed particularly well in the most recent debate against her opponent. Her campaign manager polled a random sample of 400 likely voters before the debate and a random sample of 500
likely voters after the debate. The 95% confidence interval for the true difference (post-debate minus pre-debate)
in proportions of likely voters who would vote for this candidate was (-0.014, 0.064). What is the margin of error for
this confidence interval?

0.064+(-0.014)/2 = 0.025

0.064-(-0.014)/2 = 0.039

0.064+(-0.014) = 0.050

0.064-(-0.014) = 0.078

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 18:00
Me, prove a quadrilateral with vertices g(1,-1), h(5,1), i(4,3) and j(0,1) is a rectangle using the parallelogram method and a rectangle method.
Answers: 3
question
Mathematics, 21.06.2019 20:00
The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest
Answers: 2
question
Mathematics, 21.06.2019 20:30
What’s -11-33k and factor each expression completely
Answers: 2
question
Mathematics, 21.06.2019 20:40
David estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x. create a question you could ask that could be answered only by graphing or using a logarithm.
Answers: 1
You know the right answer?
A political candidate feels that she performed particularly well in the most recent debate against h...
Questions
question
Mathematics, 28.10.2020 16:00
question
Mathematics, 28.10.2020 16:10