Homework Help: math

Posted by Dalila on Tuesday, October 25, 2011 at 10:46pm.

a random sample of 42 college graduates who worked during their program revealed that a student spent an averge of 5.5 yeas on the job before being promoted. The sample standard deviation was 1.1 yrs. Using the .99 degree of confidence, what is the confidence interval for the population mean
choices 5.04 and 5.96, 5.06 and 5.94, 2.67 and 8.33 4.4 and 6.60

math - joe, Friday, June 15, 2012 at 4:51pm
5.06 and 5.94
math - Jlg, Tuesday, July 10, 2012 at 10:16am
5.04 and 5.96 is the correct answer

Answer this Question

Related Questions

math - According to the statistics of a famous high school in Canada, all their ...
Math Statistical #2 - Research at the University of Toledo indicates that 50 ...
statistics - Use the given confidence level and sample data to find a confidence...
math - The National Center for Education surveyed 4400 college graduates about ...
probability - 78% of college graduates say they spent two years or less at their...
probability - 78% of college graduates say they spent two years or less at their...
statistics - The National Center for Education surveyed 4400 college graduates ...
Math - How can you classify the 2 examples that you gave in part c? Is it: ...
statistic - 1.The state highway patrol stops every 5th car on highway 210 to ...
Statistics - A random sample of 384 people in a mid-sized city (city one) ...

For Further Reading

First Name:
School Subject:
Answer: