Part 1 A principal wants to determine if a new ACT preparation program is effective. The data are contained in the schools.sav data file. Open the schools.sav file in SPSS. Use SPSS to determine whether a significant improvement existed between student performance on ACT tests in 1993 (act93) and ACT tests in 1994 (act94). Assume that the same students were involved in 1993 and 1994 testing. This requires a t-test. Review Chapter 10 of Using SPSS for Windows and Macintosh for information on paired t-tests as well as reporting, interpreting, and writing results using the APA format. Create a report that answers the principal's question. Write these conclusions in the APA format. Include your SPSS output to support your conclusion.