Biostats

1. Looking at this SPSS output, is there a significant difference in violence exposure between

genders? Please provide interpretation of results.

Independent Samples Test

Levene's Test

for Equality of

Variances

t-test for Equality of Means

F Sig. t df Sig.

(2tailed)

Mean

Difference

Std. Error

Difference 95% Confidence

Interval of the

Difference

Lower Upper

Equal

variances

VioExp assumed .090 .765 .066 156 .947 .015 .227 -.434 .463

Interpretation:

Why do you ____________the null hypothesis?

Homework 9: Page 1

2. Now, using the data file HSCI390.save (n= 3515 for this test). Please report whether males

and females have similar, or different, mean on the “approximate GPA” score.

Please present the steps of your scientific hypothesis:

1.

2.

3.

4.

5.

6.

Homework 9: Page 2