I need help with a statistics problem

User Generated

Ryyrel

Mathematics

Description

Assume the population proportion is to be estimated from the sample described. Find the approximate margin of error and the 95% confidence interval for the population proportion. Sample size=289, Sample proportion=0.28 (Round four decimal places)

User generated content is uploaded by users for the purposes of learning and should be used following Studypool's honor code & terms of service.

Explanation & Answer

Thank you for the opportunity to help you with your question!

The Formula for the Margin of Error.

E = zα/2/(2√ n) where E is the error we require, we need to standardize the data

alpha is 0.05.we divide by 2 to get 1.96/(2*289*0.5)=0.05765 about 5.76% error

confidence interval

-0.022<0.28<0.3376

Please let me know if you need any clarification. I'm always happy to answer your questions.


Anonymous
Great! Studypool always delivers quality work.

Studypool
4.7
Trustpilot
4.5
Sitejabber
4.4

Related Tags