Z-test for Difference of Proportions
              -used to test the hypothesis that two populations have the same proportion.


              For example suppose one is interested to test if there is any significant difference in the habit of tea drinking of male and female citizens of a town. In such situations, Z-test for difference of proportions can be applied.
              One would have to obtain two independent samples from the town- one from males and the other from females and determine the proportion o tea drinkers in each sample in order to perform this test.






POSTED BY: VON ERJUN SABUSAP