What am I doing wrong here?

Please help. I am stuck. How to resolve this.

C and G are incorrect.

a.) To test whether or not the fish have the same mean size in the two pools, the null hypothesis will be: Incorrect HO: x 1-x 2 = -2.28 Incorrect HO: p1-p2 = -2.28 Incorrect HO: x 1-x 2 = 0 Correct: HO: p1-p2 = 0 You are correct. Your receipt no. is 162-5320 (2 Previous Tries b.) The alternative hypothesis for this test will be: Incorrect Ha: x 1-x 2 # -2.28 Incorrect Ha: p1-p2 # -2.28 Incorrect Ha: $ 1-x 2 # 0 Correct: Ha: p1-H2 # 0 You are correct. Your receipt no. is 162-5695 (?) Previous Tries c.) What is the pooled estimate of the variance? 1.503 Submit Answer Incorrect. Tries 1/5 Previous Tries d.) Compute the value of the test statistic. -2.40 You are correct. Your receipt no. is 162-5857 (?) Previous Tries e.) Find bounds on the P value for the test. Incorrect P .1 You are correct. Your receipt no. is 162-186 (?) Previous Tries f) Is there statistically significant evidence against HO at a = 0.05 ? Yes No Not enough information to decide Incorrect. Tries 1/1 Previous Tries g.) Calculate the 95% confidence interval for the difference in mean length Lower: -4.472 Upper: 0.088 Submit Answer Incorrect. Tries 1/5 Previous TriesShelly and Kelly Macdonald met up with Sarah and Tara MacNeill to go fishing in Cape Breton. They found two pools in a stream containing speckled trout (assume equal variance), with the Macdonalds at one pool and the MacNeills at the other, and at the end of the day each team had caught (and released unharmed) 5 fish. For each fish they recorded the length and weight, and the data on length (in cm) is summarized below (Give the answers to 2 places past decimal) Team Mean Std. Dev Macdonald 18.7 1.4 MacNeill 20.98 1.6