please help me on this

1. Let's say we have two samples. One has SS = 36 and a second sample has SS =24. (5 points total; 2.5 points each) If n = 5 for both samples, compute the pooled variance. Show your work or explain your answer. (2.5 points) (HINT: Because the samples are the same size, you should find that the pooled variance is exactly halfway between the two sample variances.) b. Now assume that n = 5 for the first sample and n = 13 for the second. Again, calculate the pooled variance. Show your work or explain your answer. (2.5 points) (HINT: You should find that the pooled variance is closer to the variance for the larger sample.) 2. A researcher conducts an experiment comparing two treatment conditions with 15 scores in each treatment condition. (4 points total; 2 points each) a. If a between-subject/independent-samples design is used, how many subjects are needed for the experiment? Explain your answer. (2 points) a. If a repeated-measures design is used, how many subjects are needed for the experiment? Explain your answer (2 points)