Mathematics
Mathematics, 18.12.2021 04:40, vanessagomezcx

A recent survey on the usage of cosmetics among youth provided the following data: Year: 2004; Sample size: 5000; Youth who use cosmetics: 36%
Year: 2014; Sample size: 4250; Youth who use cosmetics: 47%

Construct a 99% confidence interval for the difference in population proportions of youth who were using cosmetics in 2004 and youth who were using cosmetics in 2014. Assume that random samples are obtained and the samples are independent. (Round your answers to three decimal places.)

z0.10z0.05z0.025z0.01z0.005
1.2821.6451.9602.3262.576
Select the correct answer below:
A. (−0.150,−0.070)
B. (−0.136,−0.084)
C. (−0.140,−0.080)
D. (−0.127,−0.093)

answer
Answers: 1

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 16:40, jessicap7pg75
If 24 people have the flu out of 360 people, how many would have the flu out of 900. choose many ways you could use proportion that david would use to solve this problem
Answers: 1
image
Mathematics, 22.06.2019 03:00, ariano76
A. find the power of the test, when the null hypothesis assumes a population mean of mu = 450, with a population standard deviation of 156, the sample size is 5 and the true mean is 638.47 with confidence intervals of 95 b. find the power of the test, when the null hypothesis assumes a population mean of mu = 644, with a population standard deviation of 174, the sample size is 3 and the true mean is 744.04 with confidence intervals of 95% c. find the power of the test, when the null hypothesis assumes a population mean of mu = 510, with a population standard deviation of 126, the sample size is 10 and the true mean is 529.44 with confidence intervals of 95
Answers: 2
image
Mathematics, 22.06.2019 06:20, lejeanjamespete1
The dimensions of the rectangular pool shown below are 60 yards by 30 yards. a fence will be built around the outside of the deck. the ratio of the dimensions of the pool to the dimensions of the fence is 1/3. how many yards of fence should be purchased to enclose the deck?
Answers: 3
image
Mathematics, 22.06.2019 07:10, 544620
If f(x) and g(x) are inverses, what will be the values of f(g(x)) and g(f(
Answers: 2
Do you know the correct answer?
A recent survey on the usage of cosmetics among youth provided the following data: Year: 2004; Sam...

Questions in other subjects:

Konu
Chemistry, 02.12.2020 02:30
Konu
Mathematics, 02.12.2020 02:30