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Description: The average income in a certain area is assumed to be approximately $35,000. Assume the standard deviation of the incomes in the area to be $8,000. We wish to test if the average income in the area is less than $35,000. A SRS of size 36 yields a sa

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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The average income in a certain area is assumed to be approximately $35,000. Assume the standard deviation of the incomes in the area to be $8,000. We wish to test if the average income in the area is less than $35,000. A SRS of size 36 yields a sample mean of $37,000.

What is the value of the test statistic for this problem?

Group of answer choices

0.75

1.875

1.5

2.25

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