A random sample of 25 students were asked to self-identify as "statistics-lovers" or "statistics-adorers." 16 students self-identified as "lovers" and 9 students as "adorers." Below table summarizes the mean of a statistics test and standard deviation that was given after the self-identification. Test the following hypothesis at alpha=5% (0.05). HO: Mean Statistics Lovers = Mean Statistics Adorers HA: Mean Statistics Lovers # Mean Statistics Adorers You can assume equal variance. Statistics Statistics Lovers Adorers 16 9. mean 90 92 Variance 6

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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A random sample of 25 students were asked to self-identify as "statistics-lovers" or
"statistics-adorers." 16 students self-identified as "lovers" and 9 students as
"adorers." Below table summarizes the mean of a statistics test and standard
deviation that was given after the self-identification. Test the following hypothesis at
alpha=5% (0.05).
HO: Mean Statistics Lovers = Mean Statistics Adorers
HA: Mean Statistics Lovers # Mean Statistics Adorers
You can assume equal variance.
Statistics Statistics
Lovers
Adorers
16
9.
mean
90
92
Variance
6
7
Transcribed Image Text:A random sample of 25 students were asked to self-identify as "statistics-lovers" or "statistics-adorers." 16 students self-identified as "lovers" and 9 students as "adorers." Below table summarizes the mean of a statistics test and standard deviation that was given after the self-identification. Test the following hypothesis at alpha=5% (0.05). HO: Mean Statistics Lovers = Mean Statistics Adorers HA: Mean Statistics Lovers # Mean Statistics Adorers You can assume equal variance. Statistics Statistics Lovers Adorers 16 9. mean 90 92 Variance 6 7
How many degrees of freedom do you have?
17
19
21
23
Transcribed Image Text:How many degrees of freedom do you have? 17 19 21 23
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