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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