Page 89 - Quantitative Data Analysis
P. 89
Quantitative Data Analysis
Simply Explained Using SPSS
Unit Exercises
Problem # 1 Weight Loss
Six people were selected to take part in a weight-loss study. Is there
a significant difference in the average weights before and after the
study? – What is the independent and dependent variables in this
example? Also find the test statistical value and provide research
conclusion.
Participants Weight Before Weight After
1 160 145
2 140 130
3 250 225
4 183 170
5 125 120
6 90 92
The Theory and Applications of Statistical Inferences 73
