Find the mean , standard deviation, and t

Problem Set 2 - You are assessing the degree to which early childhood educators feel confident in their abilities to teach diverse children. You are using the Teacher Cultural Competency Self-Efficacy Scale that ranges on a scale from 4 to 24. Higher scores indicate greater belief in their own preparation. You have received data from 16 preservice teachers, 8 who have taken a course on diversity and 8 who did not. Please us the following data to calculate the independent t-value and to determine whether these differences are significant. Took a Diversity Did Not take a Course Diversity Course 24 5 22 10 20 19 10 20 17 13 19 15 20 12 24 8