1. An economist claims that the mean family income of a certain populated area in Metro Manila is 22450php monthly. Test the claim at a 0.05 level of significance. The economics students take a sample of 150 families obtaining a mean of 19769php with a standard deviation of 529php. What is the conclusion?
1. An economist claims that the mean family income of a certain populated area in Metro Manila is 22450php monthly. Test the claim at a 0.05 level of significance. The economics students take a sample of 150 families obtaining a mean of 19769php with a standard deviation of 529php. What is the conclusion?
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.7: Applied Problems
Problem 23E
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