Question

Suppose as a researcher you wish to conduct a study on the differences in examination scores between male and female students at DCC college. How would you design such a study in terms of data collection and analytical technique to isolate the significant difference if any?

Answer 1

As a researcher, we would gather the scores for a large number of students in each group - Male and female. It would be better if the number of respondents are more than 30.

We then calculate the mean of each group of scores i.e. mean of male scores and mean of female scores.

And then we can use the z distribution to find out if the difference between the means of each group i.e. means of male scores and means of the female score are statistically significant or not. If the difference is not statistically significant, then we fail to reject the null hypothesis that the means of both groups is equal. If the difference is statistically significant, then we can reject the null hypothesis that the means of both groups are equal.