1. A psychologist is examining the educational advantages of a new enrichment program for preschoolers. A sample of 24 fourth grade children is obtained. Half of these children are assigned to attend the enrichment program and half attend normal preschool. The psychologist records the standardized scholastic achievement score for each child: Enrichment program: 8, 6, 8, 9, 7, 7, 6, 9, 8, 9, 7, 8 No enrichment: 8, 5, 7, 6, 8, 5, 7, 5, 6, 7, 5, 6, Run a t-test using SPSS (two-tailed; SPSS default) and then answer the following questions (assume equal variances): What is the sample statistic (t)? Do students from the enrichment program score significantly higher than the others at the .01 alpha level (yes or no)?