Answered: Good Day . How would you approach the…

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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Good Day .

How would you approach the below question ?

The records of a state- owned company indicates that of all of all the vehicles undergoing emissions testing during the previous year , 70% passed on the fisrt test . A random sample of 200 cars tested in the country during the current year reveals 62% passed the initial test . Does this data suggest that the proportion for this country is less than the previous countrywide proportion? Test the relevant hypothesis at the 5% level of significance.

A) State the null and alternative hypotheses for the test

B) What is the test Statistic?

C) Calculte the value of the test statistic for this test

D) Determine the critical region(s) for this test

E) State the conclusion of this test . Give your reason for your answer

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