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
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
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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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