Research Question: Do 60% of student prefer iPhone and 40% prefer Android?
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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Research Question: Do 60% of student prefer iPhone and 40% prefer Android?
A Lecturer is interested in the type of Mobile phone students use.
He surveyed a sample of 45 male and female students and asked them whether they use iPhone or Android.
|
|
IPhone |
Android |
Total |
|
Observe
|
25 |
20 |
45 |
From the table above calculate the value of the chi-squared statistic. Note: Use at least two decimal places in your calculations!
=(2 dp)
What are the degrees of freedom of the chi-squared statistic?
=
Is the p-value (choose from below)
-Greater than 0.05?
-Less than 0.05?
At a 5% significance level(choose from below)
-Not Reject the null hypothesis?
-Reject the null hypothesis?
Your conclusion: (choose from below)
-Proportions could be same
-Proportions are not the same as stated in Ho
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