An article reported the results of a peer tutoring program to help children learn to read. In the experiment, the children were randomly divided into two groups: the experimental group received peer tutoring along with regular instruction, and the control group received regular instruction with no peer tutoring. There were :11 = h2 = 30 children in each group. The GatesMacGintie Reading Test was given to both groups before instruction began. For the experimental group, the mean score on the vocabulary portion of the test was X1 = 344.5, with sample standard deviation $1 = 49.9. For the control group, the mean score on the same test was ;2 = 354.4, with sample standard deviation 52 = 50.7. l USE SALT (a) Use a 5% level of signicance to test the hypothesis that there was no difference in the vocabulary scores of the two groups before the instruction began. (i) What is the level of significance? E State the null and alternate hypotheses. 0 H0: #1 = \"2} H1: #1 0.500 O 0.250