You want to test if there is a difference in the number of hours per month people spend partying when they are 20 versus when they are 30. You do a ten-year study and collect the date below for nine subjects. Conduct a t-test to see if there is a significant difference. Be sure to measure effect sizeParticipant                               20’s                              30’sA                                               9                                   7                                B                                               8                                   7C                                               7                                   3D                                               7                                   8E                                                8                                   6F                                                9                                   4G                                               7                                   6H                                               7                                   7I                                                8                                    4 Effect Size Compute the following measures of effect size and explain what they tell you. Compute Cohen’s d   Compute r2   Compute a confidence interval at 90%

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.1: Measures Of Center
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You want to test if there is a difference in the number of hours per month people spend partying when they are 20 versus when they are 30. You do a ten-year study and collect the date below for nine subjects. Conduct a t-test to see if there is a significant difference. Be sure to measure effect size
Participant                               20’s                              30’s
A                                               9                                   7                                B                                               8                                   7
C                                               7                                   3
D                                               7                                   8
E                                                8                                   6
F                                                9                                   4
G                                               7                                   6
H                                               7                                   7
I                                                8                                    4

Effect Size
Compute the following measures of effect size and explain what they tell you.

Compute Cohen’s d

 

Compute r2

 


Compute a confidence interval at 90%

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