D Question 5 6 pts A high school administrator is concerned about the weights of the girls on the cheerleading and dance squads. It is well known that girls selected in their sophomore year are forbidden from gaining weight as they become seniors. There are 40 girls between the two squads. She randomly selects ten girls and weighs them. She then consults the school nurse and comes up with a mean weight for the population of girls in the entire school. The data are below: Mean Weight for all girls (population) in the school: 136 (SD = 12) Mean weights for the random sample of cheerleaders/dance 105 100 Mean: 104.5 99 111 SD = 7.28 110 105 101 90 115 109 The school administrator is worried about the apparent 30lb difference between the dance and cheer team weights (sample) and the weights of the other girls in the school (population) She consults you to help conduct a significance test to determine if the difference between the cheerleaders and the school is significant. Which significance test do you decide to use and why? A. I would use an independent sample t - test, I know sample means and SDs B. I would use a z - test, I know one sample mean and SD and I know the population mean (mu) and SD (little sigma) C. I would use a dependent sample t - test, I have means and SDs from two samples who are very close together D. I would use an ANOVA ENTER THE LETTER OF YOUR CHOICE HERE