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General Statistics
Chapter 11
Chi-Square Analysis
Workshop 11a - Goodness-of-fit


 
Goodness-of-fit chi-square test

There are 4 types of response to a questionnaire about students' study habits, If the types of responses are equally likely, and the actual number of response per each type is given in the table below, do we have evidence to conclude that response types are not all equal?
 
Response Types 1 2 3 4
Number of Responses 30 40 33 47

(a) What is the chi-square statistics?

(b) What is your inference about based on chi-square anaylsis?

(c) Why did you select this particular chi-square anaylsis?

(d) Is there any other inference you can make about the data from the conclusion of the chi-square anaylsis?

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