MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
Bartleby Related Questions Icon

Related questions

Question
A college student is interested in investigating the claim that students who graduate with a master’s degree earn higher salaries, on average, than those who finish with a bachelor’s degree. She surveys, at random, 36 recent graduates who completed their master’s degrees, and finds that their mean salary is $⁢32,400 per year. The standard deviation of annual salaries for the population of recent graduates who have master’s degrees is known to be $1800. She also surveys, at random, 45 recent graduates who completed their bachelor’s degrees, and finds that their mean salary is $⁢31,600 per year. The standard deviation of annual salaries for the population of recent graduates with only bachelor’s degrees is known to be $2800. Test the claim at the 0.01 level of significance. Let recent graduates with a master's degree be Population 1 and let recent graduates with a bachelor's degree be Population 2.
 
Step 1 of 3 :  
State the null and alternative hypotheses for the test. Fill in the blank below.

H0 μ1=μ2: 
Ha:μ1_μ2
 
 
Expert Solution
Check Mark
Step 1: We have given that

n1=36,n2=45,X1¯=32400,X2¯=31600

σ1=1800,σ2=2800,α=0.01

Knowledge Booster
Background pattern image
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
MATLAB: An Introduction with Applications
Statistics
ISBN:9781119256830
Author:Amos Gilat
Publisher:John Wiley & Sons Inc
Text book image
Probability and Statistics for Engineering and th...
Statistics
ISBN:9781305251809
Author:Jay L. Devore
Publisher:Cengage Learning
Text book image
Statistics for The Behavioral Sciences (MindTap C...
Statistics
ISBN:9781305504912
Author:Frederick J Gravetter, Larry B. Wallnau
Publisher:Cengage Learning
Text book image
Elementary Statistics: Picturing the World (7th E...
Statistics
ISBN:9780134683416
Author:Ron Larson, Betsy Farber
Publisher:PEARSON
Text book image
The Basic Practice of Statistics
Statistics
ISBN:9781319042578
Author:David S. Moore, William I. Notz, Michael A. Fligner
Publisher:W. H. Freeman
Text book image
Introduction to the Practice of Statistics
Statistics
ISBN:9781319013387
Author:David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:W. H. Freeman