Answered: A newspaper article indicated that 43…

Name: A newspaper article indicated that 43 percent of cars with black seats
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Description: A newspaper article indicated that 43 percent of cars with black seats are white, 46 percent of cars with black seats are blue, 7 percent of cars with black seats are red, and 4 percent of cars with black seats are black. A test was conducted to inve

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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A newspaper article indicated that 43 percent of cars with black seats are white, 46 percent of cars with black seats are blue, 7 percent of cars with black seats are red, and 4 percent of cars with black seats are black. A test was conducted to investigate whether the color of cars with black seats was consistent with the newspaper article. A random sample of cars of these colors was selected, and the value of the chi-square test statistic was χ2=8.2. Which of the following represents the p–value for the test?

P(χ2≥8.2)=0.08

A
P(χ2≥8.2)=0.04

B
P(χ2≤8.2)=0.96

C
P(χ2=8.2)=0.00

D
The p-value cannot be calculated because the sample size is not given.

E

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