MATH 110 Midterm: Exam 3A No Solutions Spring 1997
14 Mar 2019
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Section : there are two methods of re-roo ng a house, method 1 and method 2. A research organization randomly sampled 200 houses re-roofed by method 1 and found 18% experienced leaks within the. Another random sample of 200 houses re-roofed by method 2 found 29% experienced leaks within the rst 4 years. Construct a 95% con dence interval for the di erence between method. Each member in a group of 8 is randomly assigned one of the three medications when they experience a migraine, and the time to relief is recorded (in minutes). Is the design balanced or unbalanced? (b) write down the null and alternative hypotheses: (continued) (c) complete an anova table for this situation, (be sure to show calculations below the table) and test at = 0. 1. What conclusion can you draw? (d) construct collective 70% con dence intervals for each of the di erences a b, a c, and.
