CMN 3102: Lecture # 7 Feb 25th 201402/25/2014
Tests of statistical significance.
Tests of statistical significance: formal and exact way to test hypotheses
Derived with help of advanced mathematics
Is a relationship between independent and dependent variables statistically significant
Statistical significance does not always imply reallife significance.
Research and Null Hypothesis:
A statement about relationship between independent and dependent variables that we want to prove or
Frequency of computer use in Canada differs significantly by region.
A statement of no difference between independent and dependent variables
Frequency of computer use in Canada does not differ significantly by region
If a relationship between an independent variable and a dependent variable I statistically nonsignificant.
Null hypothesis is true
Research hypothesis is rejected
Statistical significant if less than one of the