A consumer magazine polls cell-phone-users to see if they are happy with their phones and would purchase the same model again. They randomly selected cell-phone-users and found the following: 429 of 550 owners of iPhones would purchase their phone again, and 324 of 450 owners of Androids would purchase the same phone again. a) Conduct a hypothesis test with an alpha-level of 0.05 to determine if there is strong evidence that owners of iPhones are happier with their purchase than owners of Androids. Be sure to give the name of the test that you are performing . b) If your conclusion was wrong, what type of error occurred, Type I or Type II ?
A consumer magazine polls cell-phone-users to see if they are happy with their phones and would purchase the same model again. They randomly selected cell-phone-users and found the following: 429 of 550 owners of iPhones would purchase their phone again, and 324 of 450 owners of Androids would purchase the same phone again. a) Conduct a hypothesis test with an alpha-level of 0.05 to determine if there is strong evidence that owners of iPhones are happier with their purchase than owners of Androids. Be sure to give the name of the test that you are performing . b) If your conclusion was wrong, what type of error occurred, Type I or Type II ?
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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A consumer magazine polls cell-phone-users to see if they are happy with their phones and
would purchase the same model again. They randomly selected cell-phone-users and found
the following: 429 of 550 owners of iPhones would purchase their phone again, and 324 of
450 owners of Androids would purchase the same phone again.
a) Conduct a hypothesis test with an alpha-level of 0.05 to determine if there is strong
evidence that owners of iPhones are happier with their purchase than owners of
Androids. Be sure to give the name of the test that you are performing .
b) If your conclusion was wrong, what type of error occurred, Type I or Type II ?
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