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28. A taxi company is trying to decide whether to purchase brand A or brand B tires for its fleet of taxis. To estimate
Posted: Mon Nov 15, 2021 10:00 am
by answerhappygod
- 28 A Taxi Company Is Trying To Decide Whether To Purchase Brand A Or Brand B Tires For Its Fleet Of Taxis To Estimate 1 (151.6 KiB) Viewed 189 times
28. A taxi
company is trying to decide whether to purchase brand A or brand B tires for its fleet of taxis. To estimate the difference in the two brands, an experiment is conducted using 13 of each brand. The tires are run until they wear out. The results are = Brand A: X1 = 36,300 kilometers, Si = 5,000 kilometers. Brand B: X2 = 38,100 kilometers, , S2 = 6,100 kilometers. = of Construct a 90% confidence interval for assuming the populations to be approximately งง normally distributed.