1. Researches are interested in whether or not the average fuel economy for compact cars is thesame as sedan cars. A sample of 36 compact cars and 25 sedan cars is taken.= 25.The sample of compacts returns a mean of X = 38 miles per gallon and sample variance of s²36 with a sample variance of s² = 49.The sample of sedans returns a sample mean Y=Let μ₁ be the population mean of compacts and µ₂ for sedans.a. Create a 95% confidence interval for ₁.b. Now create a 95% confidence interval for μ₁ - ₂.c. Say the interval from part b. contains 0. What can you say about the difference in the averagefuel economy of compact cars versus economy cars.

Answered: Image /qna-images/answer/08c9b04e-095b-40f6-9824-8e7aeedbcf53.jpg

Answered: 1. Researches are interested in whether…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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