Suppose MS_treatis calculated for three samples that are from a population with a mean = 10. Under which condition below would MS_treatcertainly become larger? A) the addition of a sample from a population with the a mean of 10 B) the addition of a sample from a population with a mean = 20 C) the removal of one of the three samples from the calculations D) all of the other alternatives are correct.

Question

Quizplus · Accepted Answer

Adding a sample from a population with a mean significantly different from the original population mean (in this case, 20 vs. 10) would increase the variance between groups, thereby increasing the Mean Square Between Groups (MSS1U1B1treatS1U1B0S1U1B1).

Suppose MStreat is Calculated for Three Samples That Are from a Population

Suppose MS_treatis Calculated for Three Samples That Are from a Population