A study was made to estimate the difference in salaries of college professors in the private and state colleges of Virginia. A random sample of 100 professors in private colleges showed an average 9-month salary of $26,000 with a standard deviation of $1300. A random sample of 200 professors in state colleges showed an average salary of $26,900 with a standard deviation of $1400. Test the hy- pothesis that the average salary for professors teaching in state colleges does not exceed, the average salary for professors teaching in private colleges by more than $500. Use a 0.02 level of significance.
A study was made to estimate the difference in salaries of college professors in the private and state colleges of Virginia. A random sample of 100 professors in private colleges showed an average 9-month salary of $26,000 with a standard deviation of $1300. A random sample of 200 professors in state colleges showed an average salary of $26,900 with a standard deviation of $1400. Test the hy- pothesis that the average salary for professors teaching in state colleges does not exceed, the average salary for professors teaching in private colleges by more than $500. Use a 0.02 level of significance.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
Related questions
Question
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps with 1 images
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill