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. Ferrari Driver 16 Porsche Driver 16 mean 50 47 Variance 9. 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.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
Question
100%
39
Two Sample Test Unequal Variance
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.
Ferrari Driver
16
Porsche Driver
16
mean
50
47
Variance
9.
25
Conduct the following hypothesis test at =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:Two Sample Test Unequal Variance 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. Ferrari Driver 16 Porsche Driver 16 mean 50 47 Variance 9. 25 Conduct the following hypothesis test at =0.05. HO: Mean Age Porsche Drivers< Mean Age Ferrari Drivers HA: Mean Age Porsche Drivers > Mean Age Ferrari Drivers Assume unequal variance.
What is the standard error of the sampling distribution? S.E.=
1.458
1.584
1.845
0.814
Transcribed Image Text:What is the standard error of the sampling distribution? S.E.= 1.458 1.584 1.845 0.814
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