A Researcher Selects a Pair of Random Samples

Short Answer

A researcher selects a pair of random samples. In Group 1 the scores are 14, 10, 10, 9, 8, 6, 4. In Group 2 the scores are 12, 10, 6, 5, 4, 2, 2.
a. Find the t ratio
b. As a two-tail t, should Ho be rejected? If rejected, state the probability of the alpha error.
c. Do the two groups represent a single population?