subject
Mathematics, 14.11.2019 21:31 ashleytellez

The centers for disease control reported the percentage of people 18 years of age and older who smoke (cdc website, december 14, 2014).
suppose that a study designed to collect new data on smokers and nonsmokers uses a preliminary estimate of the proportion who smoke of 30.

a) how large a sample should be taken to estimate the proportion of smokers in the population with a margin of error of .02 (to the nearest whole number)? use 95% confidence.

b)assume that the study uses your sample size recommendation in part (a) and finds 520 smokers. what is the point estimate of the proportion of smokers in the population (to 4 decimals)?

c)what is the 95% confidence interval for the proportion of smokers in the population (to 4 decimals)?

ansver
Answers: 1

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 23:50, amayarayne5
Use a transformation to solve the equation. w/4 = 8 can you also leave a detailed explanation on how this equation = 32
Answers: 1
image
Mathematics, 22.06.2019 02:10, toxsicity
Susan is paying $0.30 per $100 on her $483,000 home in homeowners insurance annually. if her annual homeowners insurance premium is divided into twelve equal monthly installments to be included on each of her monthly mortgage payments of $2,128.00, what is her total monthly payment?
Answers: 2
image
Mathematics, 22.06.2019 02:30, byler47
The floor of a building consists of 3000 tiles which are rhombus shaped and each of it's diagonals are 45 cm and 30 cm in length. find the total cost of polishing the floor, if the cost per m² is rs. 4.
Answers: 1
image
Mathematics, 22.06.2019 02:40, Becky81
Which situation is an example of an observational study?
Answers: 3
You know the right answer?
The centers for disease control reported the percentage of people 18 years of age and older who smok...

Questions in other subjects:

Konu
Mathematics, 20.09.2020 09:01