a. Write a table with observations for these samples. b. Using the table, explain (calculate) where the S=1.22 comes from c. Conduct a two-tailed comparison of the two groups with a=.05. Please...

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Extracted text: 3. One sample has SS=60 and a second sample has SS=48. a. If n=7 for both samples, find each of the sample variances, and calculate the pooled variance. b. If n=5 for the first sample and n=7 for the second sample, calculate the sample variance and pooled variances. c. What changed due to this change in sample size? 4. Check out the frequency distributions for two treatment groups: Treatment 1 Treatment 2| n = 9 M= 8 n = 9 М- 13 s = 1.22 s = 1.22 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 a. Write a table with observations for these samples. b. Using the table, explain (calculate) where the S=1.22 comes from c. Conduct a two-tailed comparison of the two groups with a=.05. Please remember to state your hypothesis. Now look at: Treatment 1 Treatment 2 n = 9 M= 8 n = 9 M = 13 s = 6.65 s = 6.65 0 1 2 3 4 5 6 7 8 9 10 1u 12 13 14 15 16 17 18 19 20 21 d. Write a table with observations for these samples. e. Using the table, explain (calculate) where the S=6.65 comes from f. Conduct a two-tailed comparison of the two groups with a=.05. g. What changed between [a-c] and [d-f]? what impact did it have? 5. A reason people give for drinking coffee is "alertness" or "energy". This could be the case for kids who drink coffee. Or they could be groggier from a lack of sleep due to coffee. We asked 50 1yoar Cid Kido who drink coffee