A hypothesis test is to be performed. Determine the null and alternate hypotheses. In  1994 , the average duration of long-distance telephone calls originating in one town was  7.6  minutes. A long-distance telephone company wants to perform a hypothesis test to determine whether the average duration of long-distance phone calls has changed from the  1994  mean of  7.6  minutes.     H0 : =μ7.6 minutes H1 : <μ7.6 minutes     H0 : =μ7.6 minutes H1 : ≠μ7.6 minutes     H0 : =μ7.6 minutes H1 : >μ7.6 minutes     H0 : ≠μ7.6 minutes H1 : =μ7.6 minutes

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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A hypothesis test is to be performed. Determine the null and alternate hypotheses.

In 

1994

, the average duration of long-distance telephone calls originating in one town was 

7.6

 minutes. A long-distance telephone company wants to perform a hypothesis test to determine whether the average duration of long-distance phone calls has changed from the 

1994

 mean of 

7.6

 minutes.

 
 
H0
:
=μ7.6
minutes
H1
:
<μ7.6
minutes
 
 
H0
:
=μ7.6
minutes
H1
:
≠μ7.6
minutes
 
 
H0
:
=μ7.6
minutes
H1
:
>μ7.6
minutes
 
 
H0
:
≠μ7.6
minutes
H1
:
=μ7.6
minutes
 
 
 
 
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