Shelly and Kelly Macdonald met up with Sarah and Tara MacNeill to go shing 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 sh. For each sh they recorded the length and weight, and the data on length (in cm) is summarized below (Give the answers to 2 places past decimal) _ Macdonald @ m 20-73 _ a.) To test whether or not the sh have the same mean size in the two pools, the null hypothesis will be: 0 H0: 2 1i 2 = -Z.43 O HO: ul-pz = -2.43 O Ho: 2 1: 2 = 0 O HO: u1-uz = o 388:?! Tries 0/1 b.) The alternative hypothesis for this test will be: 0 Ha: i 1-)? 2 e -2.43 0 Ha: u1-u2 a: -2.43 0 Ha: i 1-)? 2 e o 0 Ha: |J1-|J2 # 0 Tries 0/1 c.) What is the pooled estimate of the variance? : maze: Tries 0/5 d.) Compute the value of the test statistic. ati Tries 0/5 e.) Find bounds on the P value for the test. 0 P .1 i Trles 0/2 f) Is there statistically signicant evidence against H0 at a = 0.05 ? 0 Yes 0 No 0 Not enough Information to decide g'! Tries 0/1 9.) Calculate the 95% condence interval for the difference in mean length Lower: Upper: :1 EEi Tries 0/5