Homework Help: statistics

Posted by Anonymous on Thursday, December 1, 2011 at 6:18pm.

A statistician is testing the null hypothesis that exactly half of all engineers will still be in the profession 10 years after receiving their bachelor's. She took a random sample of 200 graduates from the class of 1979 and determined their occupations in 1989. She found that 111 persons were still employed primarily as engineers. Construct a 95% confidence interval estimate for the proportion of engineers remaining in the profession. lower limit=? and upper limit=?

No one has answered this question yet.

Answer this Question

Related Questions

statistics - Use the given information to find the P-value. Also, use a 0.05 ...
Statistics - If my p-value = .322 and my significant level is .05 , then My Null...
Statistics - Which testing a statistical hypothesis with significance level of ...
Statistics - are the following statements, Ho:=10 and Ha:equal to or less than, ...
Statistics - Does the null hypothesis for a nondirectional alternative ...
statistics - Can someone help me to understand the purpose of null hypothesis ...
statistics - In a chi-squared test of a contingency table, the value of the test...
Statistics - How is the rejection region defined and how is that related to the ...
statistics - How is the rejection region defined and how is that related to the ...
statistics - A researcher is testing a null hypothesis that states: H: ì...

For Further Reading

First Name:
School Subject:
Answer: