Independent Samples Test

Levene's Test for Equality of Variances

t-test for Equality of Means

F

Sig.

t

df

Sig. (2-tailed)

Mean Difference

Std. Error Difference

95% Confidence Interval of the Difference

Lower

Upper

ZWDLCB

Equal variances assumed

5.358

.023

-4.553

73

.000

-.029962399541

.006580292724

-.043076904028

-.016847895054

Equal variances not assumed

-4.489

65.285

.000

-.029962399541

.006675121776

-.043292434643

-.016632364439