crash tests at 5 miles per hour, the mean bumper repair cost for 14 small cars was $473 with a standard deviation of $190. In similar tests of 23 midsize cars, the mean repair cost was $641 with a standard deviation of $ 205. At * alpha = 0.05 a hypothesis test was conducted on the claim that small car bumper repairs are lower than midsize cars. What is the critical -score test statistic and the conclusion for this scenario?

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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In crash tests at 5 miles per hour, the mean bumper repair cost for 14 small cars was $473 with a standard deviation of $190. In similar tests of 23 midsize cars, the mean repair cost was $641 with a standard deviation of $ 205. At * alpha = 0.05 a hypothesis test was conducted on the claim that small car bumper repairs are lower than midsize cars. What is the critical -score test statistic and the conclusion for this scenario?

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