Identify the test statistics, pvalue and confidence interval please. requiring front license plates at a higher rate than owners of passenger cars. Use a 0.05 significance level totest that hypothesis.a. Test the claim using a hypothesis test.b. Test the claim by constructing an appropriate confidence interval.

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Description: Identify the test statistics, pvalue and confidence interval please. requiring front license plates at a higher rate than owners of passenger cars. Use a 0.05 significance level totest that hypothesis.a. Test the claim using a hypothesis test.b. Test

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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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Identify the test statistics, pvalue and confidence interval please.

requiring front license plates at a higher rate than owners of passenger cars. Use a 0.05 significance level to
test that hypothesis.
a. Test the claim using a hypothesis test.
b. Test the claim by constructing an appropriate confidence interval.

Expert Solution

Step 1

The proportion of commercial trucks violating laws requiring front license is,

Thus, the proportion of commercial trucks violating laws requiring front license is 0.1510.

The proportion of passenger cars violating laws requiring front license is,

Thus, the proportion of passenger cars violating laws requiring front license is 0.1132.

Step 2

Pooled proportion:

Thus, the pooled proportion is 0.1191.

Test statistic:

Thus, the test statistic is 2.10.

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