For the following questions, you are simply determining which hypothesis test you should run, and writing the null and alternate hypotheses. eHealthinsurance claims that in 2011, the average monthly premium paid for individual health coverage was $183. You are suspicious that the mean cost is actually higher. You take a random sample of 50 people and find an average premium of $195 with a standard deviation of $25. Which test should you run? A t-test for means B z-test for means C z-test for proportions
For the following questions, you are simply determining which hypothesis test you should run, and writing the null and alternate hypotheses. eHealthinsurance claims that in 2011, the average monthly premium paid for individual health coverage was $183. You are suspicious that the mean cost is actually higher. You take a random sample of 50 people and find an average premium of $195 with a standard deviation of $25. Which test should you run? A t-test for means B z-test for means C z-test for proportions
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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For the following questions, you are simply determining which hypothesis test you should run, and writing the null and alternate hypotheses. eHealthinsurance claims that in 2011, the average monthly premium paid for individual health coverage was $183. You are suspicious that the mean cost is actually higher. You take a random sample of 50 people and find an average premium of $195 with a standard deviation of $25. Which test should you run?
A
t-test for means
B
z-test for means
C
z-test for proportions
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