Find r2A: .003B: .36C: .53D: .73E: .20 A researcher theorizes that students in sororities and fraternities drinkmore than other college students. In order to test this theory, thepsychologist randomly selects 4 college students who plan to join afraternity or sorority and asks them how much they drink on an averageweek before joining their fraternity/sorority and then the researcher asksthem how much they drink in a typical week after they have joined asorority/fraternity. Their responses are recorded below.After JoiningBefore JoiningFraternity/Sorority Fraternity/Sorority231063166M =126SS =25426Conduct a 2-tailed hypothesis test by hand at the 5% level ofsignificance to determine if there is a significant difference in alcoholconsumption between conditions.

Coefficient of determination is an important regression statistic.

Answered: Find r2 A: .003 B: .36 C: .53 D:…

Math

Statistics

Find r2 A: .003 B: .36 C: .53 D: .73 E: .20

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 27PPS

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Question

Find r²

A: .003

B: .36

C: .53

D: .73

E: .20

A researcher theorizes that students in sororities and fraternities drink
more than other college students. In order to test this theory, the
psychologist randomly selects 4 college students who plan to join a
fraternity or sorority and asks them how much they drink on an average
week before joining their fraternity/sorority and then the researcher asks
them how much they drink in a typical week after they have joined a
sorority/fraternity. Their responses are recorded below.
After Joining
Before Joining
Fraternity/Sorority Fraternity/Sorority
23
10
6
3
16
6
M =
12
6
SS =
254
26
Conduct a 2-tailed hypothesis test by hand at the 5% level of
significance to determine if there is a significant difference in alcohol
consumption between conditions.

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