6. Infer or test about the mean and variance of your variables based on your sample. Construct also a confidence interval and relate it to the hypotheses that you tested. 7. Divide your data into two subsamples: infer or test about the difference in their mean and variance. Construct also a confidence interval and relate it to the hypotheses that you tested. 8. (Optional) Do the analysis of the variance ANOVA for the variables in your sample.

9. Discuss the limitations of your study and of the conclusions that you can reach with it. data:

https://docs.google.com/spreadsheets/d/1nu8S_jQoqRXE6aT3jTo9beODeYzrZkZFTeUH6KOwpCA/edit#gid=0