Question

We are interested in determining whether a sample of students at FAU differ significantly from the national college population in terms of the average amount of time spent in college. To evaluate this, we need to conduct a(n) independent samples t-test dependent samples t-test one-sample t-test any of these would be appropriate Question 8 1 pts We are interested in determining whether husbands differ from their wives on weight loss after taking a weight loss supplement. To evaluate this, we need to conduct a(n) independent samples t-test dependent samples t-test one-sample t-test any of these would be appropriate Question 9 1 pts T-tests. evaluate the difference between exactly two means evaluate the difference between at least two means evaluate the bivariate relationship between two variables none of these

Answer 1

7. Here we are comparing the average amount of time spent in college of a sample of FAU students with the national college population average. So our variable of interest is the sample mean which we want to compare to the population mean. So we have a one sample t-test here. So option c is correct.

8. Here we have two independent groups: husband's and wives weight loss after taking weight loss supplement. So to find whether the weight loss differs we will use the comparison of the means by the independent samples t test here. So option a is correct.

9. T-tests are used to evaluate differences in the mean between exactly two groups or compare the mean of a a group to the population mean. We can't compare means of more than two groups (we need ANOVA test for that)

So option D is correct.