Randomly selected 22 student cars have ages with a mean of 8 years and a standard deviation of 3.4years, while randomly selected 26 faculty cars have ages with a mean of 5.5 years and a standard deviation of 3.3years.1. Use a 0.01 significance level to test the claim that student cars are older than faculty cars.(a) The test statistic is 0.831212(b) The critical value is 2.6112(c) Is there sufficient evidence to support the claim that student cars are older than faculty cars?A. YesB. No2. Construct a 99% confidence interval estimate of the difference µ. – Hf, where u, is the mean age of studentcars and uf is the mean age of faculty cars.< (4, – H3) < 5.112-0.112

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Answered: Randomly selected 22 student cars have…

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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