MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Transcribed Image Text:The next seven questions refer to the following scenario:
A random sample of 16 Porsche drivers yielded an average age of 50 years with a variance of 9 years and a random
sample of also 16 Ferrari drivers yielded an average of 47 years with a variance of 25 years.
Porsche Driver
Ferrari Driver
n
16
16
mean
50
47
Variance
25
Conduct the following hypothesis test at a=0.05.
HO: Mean Age Porsche Drivers< Mean Age Ferrari Drivers
HA: Mean Age Porsche Drivers > Mean Age Ferrari Drivers
Assume unequal variance.
Transcribed Image Text:What do you conclude, using the correct statistical language?
You fail to reject the null
You reject the null
You accept the null
OYou accept the alternative
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