Page 70 - Quantitative Data Analysis

Quantitative Data Analysis
Simply Explained Using SPSS

g. Alpha: 0.01

h. Degrees of freedom:81 (38+45-2)

i. t critical value: 2.374 when alpha
= 0.01 one tailed with df=80, in
table there is no 81 df so we will
pick closest to 81.

j. t-test statistic:

̅ ̅

√ − −

−

− −
√
−

√

The Theory and Applications of Statistical Inferences 54