Which of the following is an example of a situation in which you could conduct a t test for independent means?

Question

Quizplus · Accepted Answer

A t test for independent means is used when comparing the means of two different groups that are not related to each other (i.e. independent). In option B, there are two groups (one that learns the words in alphabetical order and the other in order of word length) that are not related to each other, making it suitable for a t test for independent means. Option A could use a t test, but it would be a t test for dependent means as it involves comparing the performance of the same group before and after a treatment (the SAT preparation course). Option C would also use a t test, but it would be a paired t test as it involves comparing the scores of the same group before and after a training session. Option D is not suitable for a t test for independent means as it does not involve comparing two different groups.

Which of the Following Is an Example of a Situation