Week 11

Question 1

when there is no logical or meaningful way to link individuals across groups, and there is no overlap across groups

Answer 1

independent samples

Question 2

whether or not two means are the same or different

Answer 2

group mean differences

Question 3

the combined estimate of variance using the information from each sample

Answer 3

pooled variance

Question 4

the idea that the true population variance for each group is the same and any difference in the observed sample variances is due to random chance

Answer 4

homogeneity of variance