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.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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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