Question: The Oak Harbor School used the Dumbarton University Math Battery (DUMB) to test the math achievement of the two 6th-grade sections. The principal’s goal was to determine if one method for teaching math was better than another. Section 1 used the standard Oak Harbor curriculum of lecture, homework, and drill. Section 2 used a problem-based learning curriculum. Using the scores recorded in the Oak Harbor 1.sav file (the same data file used in Week 7):

° State the null and alternative hypotheses for the principal’s experiment.

° Perform an independent samples t test in order to test the hypothesis and the .05 level.

° Copy or copy object and paste relevant output from the statistical test.

° State whether or not the null hypothesis is accepted or rejected based on the results of the statistical test. Use the conventions described by Gravetter and Wallnau on page 246 to present your report.

° Decide whether you accept or reject the null hypothesis.

° In a brief paragraph (3–5 sentences), discuss what it means to accept or reject the null hypothesis in terms of the different curricula used.