Interactive Statistics Q.11.2

11.2 A study will be conducted at Decker University to compare the course loads of female ver- sus male students. From among all female students registered full time for the current term, 20% were selected at random. From among all male students registered full time for the cur- rent term, 20% were selected at random. (a) Are the data independent samples or paired samples? Explain. Hint: Think about what the sample sizes could be. (b) Identify a possible confounding variable for this study ( that is, a variable that is not of primary interest, and might not be measured, but is associated with the response of interest)