With all the media attention from the Dancing With the Stars program, local dance studios are seeing an upswing in the numbers of people interested in taking ballroom dancing lessons.Two samples of 15 students are to be judged before taking any lessons and then again after five lessons. The students belonging to the samples are to be randomly selected.
a. How can data be collected if dependent samples are to be obtained? Explain in detail.
b. How can data be collected if independent samples are to be obtained? Explain in detail.