To determine whether car ownership affects a student's academic achievement, random samples of 100 car owners and 100 nonowners were drawn from the student body. The grade point average for the n, 100 nonowners had an average and variance equal to , = 2.70 and s 36, while ī, = 2.54 and s= 40 for the n, =100 car owners. Do the data present sufficient evidence to indicate a difference in the mean achievements between car owners and nonowners? Test using a = .05.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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is this a right tailed test or 2 tailed test? pls solve 

To determine whether car ownership affects a student's academic achievement, random
samples of 100 car owners and 100 nonowners were drawn from the student body. The grade
point average for the n, 100 nonowners had an average and variance equal to ,= 2.70
and s .36, while i, = 2.54 and s.40 for the n, = 100 car owners. Do the data present
sufficient evidence to indicate a difference in the mean achievements between car owners and
nonowners? Test using a =.05.
Transcribed Image Text:To determine whether car ownership affects a student's academic achievement, random samples of 100 car owners and 100 nonowners were drawn from the student body. The grade point average for the n, 100 nonowners had an average and variance equal to ,= 2.70 and s .36, while i, = 2.54 and s.40 for the n, = 100 car owners. Do the data present sufficient evidence to indicate a difference in the mean achievements between car owners and nonowners? Test using a =.05.
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