Tuesday
September 2, 2014

Homework Help: Beginning of Stats

Posted by Laddi on Monday, December 10, 2012 at 8:45pm.

A study of 50 mathematics professors showed that they spend, on average,12.4 minutes correcting a student's final examinations. Find a 90% confidence interval of the mean time for all mathematics peofessors spend on conrrecting final examinations when standard deviation = 2.2 minutes.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

statistics - a study of 40 professors showed they spent on average 13.6 minutes ...
statistics - A study of 40 psychology teachers showed that they spent, on ...
statistics - A study of 35 professors showed that the average time they spent ...
ELEMENTARY STATISTICS - 50 MATH PROFESSORS WERE ASKED HOW LONG IT TAKES TO GRADE...
statistics - A sample of 400 high school students showed that they spend an ...
Statistics - 1. A study of 40 people found that they could do on the average15 ...
Statistics - A study conducted by an airline showed that a random sample of nine...
statistics - A sample of 106 golfers showed that their average score on a ...
statistics - A sample of 134 golfers showed that their average score on a ...
Statistics - 1. A study of 40 people found that they could do on the average15 ...

Search
Members