answer parts (a) through (e). Assume the population variances are not equal. If convenient, use technology to solve the problem. Find the critical value(s) and identify the rejection region(s). Enter the critical value(s) below.
answer parts (a) through (e). Assume the population variances are not equal. If convenient, use technology to solve the problem. Find the critical value(s) and identify the rejection region(s). Enter the critical value(s) below.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
A personnel director in a particular state claims that the mean annual income is greater in one of the state's counties (county A) than it is in another county (county B). In County A, a random sample of
10
residents has a mean annual income of
$42,400
and a standard deviation of
$8400.
In County B, a random sample of
2
residents has a mean annual income of
$38,000
and a standard deviation of
$5400.
At
α=0.10,
answer parts (a) through (e). Assume the population variances are not equal. If convenient, use technology to solve the problem.
Find the critical value(s) and identify the rejection region(s).
Enter the critical value(s) below.
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