Page 71 - Quantitative Data Analysis
P. 71
Quantitative Data Analysis
Simply Explained Using SPSS
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k. Statistical conclusion: Fail to reject null hypothesis. Since
our t statistics value (1.234) is less than t critical value
(2.374), we do not have enough evidence to reject null
hypothesis.
l. Research conclusion: Males do not have significantly a
higher diastolic blood pressure than female.
Key Notes
One thing you noticed that in problem # 2, I squared in
t-statistics formula while in problem #1, I did not squared in t-
statistics formula because, in formula we have to provide the
variances of both groups. In problem #1, variance is already
provided so there is no need to square while problem # 2 provides
the standard derivation of both groups so we need to square it to
convert it into variance.
The Theory and Applications of Statistical Inferences 55
