Preview File Edit View Go T Tools Window Help BINE 100% 2 Mon 9:43 PM Q Ron Larson, Betsy Farber - Elementary Statistics _ Picturing the World 2.pdf (page 480 of 829) Q Search Ron Larson, Betsy F... Section O. T In Exercises 1-4, classify the two samples as independent or dependent and justify your answer. 8 Review Exercises 1. Sample 1: The heights of 37 children Sample 2: The heights of the same 37 children after 1 year 2. Sample 1: The weights of 45 oranges Sample 2: The weights of 40 grapefruits 3. Sample 1: The retail prices of 20 motorcycles 456 Sample 2: The retail prices of 20 minivans 4. Sample 1: The fuel efficiencies of 12 cars Sample 2: The fuel efficiencies of the same 12 cars using an alternative fuel In Exercises 5-8, test the claim about the difference between two population means M and u2 at the level of significance a. Assume the samples are random and independent, and the populations are normally distributed. 5. Claim: M1 2 M2; a = 0.05 Population statistics: 01 = 0.30 and o2 = 0.23 Sample statistics: x1 = 1.28, n = 96 and X2 = 1.34, n2 = 85 457 6. Claim: M1 = M2; a = 0.01 Population statistics: 01 = 52 and o2 = 68 Sample statistics: x1 = 5595, n = 156 and x2 = 5575, n2 = 216 7. Claim: M1