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An experiment reported in Popular Science compared fuel economies for two types of similarly equipped diesel mini-trucks. Let us suppose that 12 Volkswagen and 10 Toyota trucks were tested in 90-kilometer-per-hour steady- paced trials. If the 12 Volkswagen trucks averaged 16 kilometers per liter with a standard deviation of 1.0 kilometer per liter and the 10 Toyota trucks averaged 11 kilometers per liter with a standard deviation of 0.8 kilometer per liter, Using 0.05 level of significance, determine if the mean if the fuel economy of for the average kilometers per liter for these two mini-trucks are equal. Assume that the distances per liter for the truck models are approximately normally distributed with equal variances.

An experiment reported in Popular Science compared fuel economies for two types of similarly equipped diesel mini-trucks. Let us suppose that 12 Volkswagen and 10 Toyota trucks were tested in 90-kilometer-per-hour steady- paced trials. If the 12 Volkswagen trucks averaged 16 kilometers per liter with a standard deviation of 1.0 kilometer per liter and the 10 Toyota trucks averaged 11 kilometers per liter with a standard deviation of 0.8 kilometer per liter, Using 0.05 level of significance, determine if the mean if the fuel economy of for the average kilometers per liter for these two mini-trucks are equal. Assume that the distances per liter for the truck models are approximately normally distributed with equal variances.

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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An experiment reported in Popular Science compared fuel economies for two types of similarly equipped diesel mini-trucks. Let us suppose that 12 Volkswagen and 10 Toyota trucks were tested in 90-kilometer-per-hour steady- paced trials. If the 12 Volkswagen trucks averaged 16 kilometers per liter with a standard deviation of 1.0 kilometer per liter and the 10 Toyota trucks averaged 11 kilometers per liter with a standard deviation of 0.8 kilometer per liter, Using 0.05 level of significance, determine if the mean if the fuel economy of for the average kilometers per liter for these two mini-trucks are equal. Assume that the distances per liter for the truck models are approximately normally distributed with equal variances. The fuel economy of for the average kilometers per liter for these two mini-trucks are different.
Transcribed Image Text:An experiment reported in Popular Science compared fuel economies for two types of similarly equipped diesel mini-trucks. Let us suppose that 12 Volkswagen and 10 Toyota trucks were tested in 90-kilometer-per-hour steady- paced trials. If the 12 Volkswagen trucks averaged 16 kilometers per liter with a standard deviation of 1.0 kilometer per liter and the 10 Toyota trucks averaged 11 kilometers per liter with a standard deviation of 0.8 kilometer per liter, Using 0.05 level of significance, determine if the mean if the fuel economy of for the average kilometers per liter for these two mini-trucks are equal. Assume that the distances per liter for the truck models are approximately normally distributed with equal variances. The fuel economy of for the average kilometers per liter for these two mini-trucks are different.
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