Tuesday
October 21, 2014

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=?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

statistics - What is wrong with the statement: It is believed that the ...
Statistics - In a study that was highly published doctors discovered that ...
STAT - Given a sample size of 18, with sample mean 660.3 and sample standard ...
STAT - Given a sample size of 18, with sample mean 660.3 and sample standard ...
statistics - Use the given information to find the P-value. Also, use a 0.05 ...
Statistics - are the following statements, Ho:=10 and Ha:equal to or less than, ...
Statistics - Which testing a statistical hypothesis with significance level of ...
statistics - Consider the following ANOVA experiments. (Give your answers ...
Statistics - The bank sets up an experiment to test the effectiveness of the ...
Statistics Problems - The bank sets up an experiment to test the effectiveness ...

Search
Members