A Canadian study measuring depression level in teens (as reported in the Journal of Adolescence, vol. 25, 2002) randomly sampled 112 male teens and 101 female teens, and scored them on a common depression scale (higher score representing more depression). The researchers suspected that the mean depression score for male teens is higher than for female teens, and wanted to check whether data would support this hypothesis. What conclusion can you draw from the output? The data provide sufficient evidence to reject H0 and to conclude that the mean depression score for male teens is larger than that of female teens. The data provide sufficient evidence to conclude that male and female teens do not differ in mean depression score. The data do not provide sufficient evidence to conclude that the mean depression score of male teens is larger than that of female teens. The data do not provide sufficient evidence to reject H0, so we accept it, and conclude that male and female teens do not differ in mean depression score. The following is the (edited) output for the test:Two-Sample T-Test and CISample1 (м)2(F)MeanStDevSE Me an0. 660. 631127.386.951017.156.31Difference = mu (1) :- mu (2)Estimate for difference:0.23000095% lower bound for difference:-1.271079T-Test of differenceT-Value= 0.25P-Value = 0. 400DF = 210

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Description: A Canadian study measuring depression level in teens (as reported in the Journal of Adolescence, vol. 25, 2002) randomly sampled 112 male teens and 101 female teens, and scored them on a common depression scale (higher score representing more depress

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A Canadian study measuring depression level in teens (as reported in the Journal of Adolescence, vol. 25, 2002) randomly sampled 112 male teens and 101 female teens, and scored them on a common depression scale (higher score representing more depression). The researchers suspected that the mean depression score for male teens is higher than for female teens, and wanted to check whether data would support this hypothesis.

What conclusion can you draw from the output?

The data provide sufficient evidence to reject H₀ and to conclude that the mean depression score for male teens is larger than that of female teens.
The data provide sufficient evidence to conclude that male and female teens do not differ in mean depression score.
The data do not provide sufficient evidence to conclude that the mean depression score of male teens is larger than that of female teens.
The data do not provide sufficient evidence to reject H₀, so we accept it, and conclude that male and female teens do not differ in mean depression score.

The following is the (edited) output for the test:
Two-Sample T-Test and CI
Sample
1 (м)
2(F)
Mean
StDev
SE Me an
0. 66
0. 63
112
7.38
6.95
101
7.15
6.31
Difference = mu (1) :
- mu (2)
Estimate for difference:
0.230000
95% lower bound for difference:
-1.271079
T-Test of difference
T-Value
= 0.25
P-Value = 0. 400
DF = 210

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