0 Question 1 1 T When doing a T-Test to compare two population means with unknown population standard deviations, the formula for finding the Degrees of Freedom is pretty messy: 2 2 2 SI 52 2 2 2 2 1 1 + 1 2 1111 1'11 1121 \"2 You can compute this by hand, or just do the 2-Samp'l'l'est on a calculator and select "No" after the Pooled? prompt. (if. Consider the random sample data in this table: Use a calculator to find the following for a two tailed test. Round all answers to three decimals. asd.f.: b.T: c. P value: You can also use a "simpler" estimation for Degrees of Freedom: d. f = smaller sample size - 1 Using this formula, with the STS you got for part b, find: d. d. f. estimate: e. P value : 0 Question 12 v a. If you are testing a claim about equality between two independent population means, with UNKNOWN population standard deviations, choose the correct formula for the Standardized Test Statistic (STS): P1 _ p2 Z : PC ' (In P: 'Qa R1 + 1'12 51 g 0% 03 :71 + 72 231 E2 5% a; a + T2 b. If you are testing a claim about equality between two independent population means, with KNOWN population standard deviations, choose the correct formula for the Standardized Test Statistic (STS): $1 a=2 T = s; 53 E + Ta 51 g Z = 0f 03' n7 + n: _ p1 p2 P6 qr: PC'Qc R1 + 1'12