We appreciate your visit to To estimate tex mu tex the mean salary of full professors at American colleges and universities you obtain the salaries of a random sample of. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!
Answer :
Answer:
99% confidence interval for [tex]\mu = 73220 \pm 565.4[/tex]
Step-by-step explanation:
Sample mean = [tex]\bar{x} =73220[/tex]
Standard deviation = s = 4400
Z at 99% confidence level = 2.57
Sample = n = 400
Formula of confidence interval :[tex]\bar{x} \pm Z \times \frac{s}{\sqrt{n}}[/tex]
Substitute the values in the formula :
So,99% confidence interval for [tex]\mu = 73220 \pm 2.57 (\frac{4400}{\sqrt{400}})[/tex]
99% confidence interval for [tex]\mu = 73220 \pm 565.4[/tex]
Thanks for taking the time to read To estimate tex mu tex the mean salary of full professors at American colleges and universities you obtain the salaries of a random sample of. We hope the insights shared have been valuable and enhanced your understanding of the topic. Don�t hesitate to browse our website for more informative and engaging content!
- Why do Businesses Exist Why does Starbucks Exist What Service does Starbucks Provide Really what is their product.
- The pattern of numbers below is an arithmetic sequence tex 14 24 34 44 54 ldots tex Which statement describes the recursive function used to..
- Morgan felt the need to streamline Edison Electric What changes did Morgan make.
Rewritten by : Barada
