Will medal!
A chi-squared goodness of fit test is used to determine whether a 0-9 spinner is "gfair." The spinner is spun 100 times, and the results are recorded. How many degrees of freedom does the chi-squared distribution have?

Question

Will medal!
A chi-squared goodness of fit test is used to determine whether a 0-9 spinner is "gfair." The spinner is spun 100 times, and the results are recorded. How many degrees of freedom does the chi-squared distribution have?

anonymous · Answer

Choose one answer.
	 A. 1	
	 B. 8	
	 C. 9	
	 D. 99	
	 E. 100

anonymous · Answer

@ganeshie8

anonymous · Answer

@satellite73

anonymous · Answer

There are 10 possible outcomes (0, 1, 2, ..., 8, 9 on the spinner), so there are 9 degrees of freedom.

anonymous · Answer

How about this one?
A two-way table of counts is analyzed to examine the hypothesis that the row and column classifications are independent. There are three rows and four columns. How many degrees of freedom does the chi-squared distribution have?
Choose one answer.
	 A. 5	
	 B. 6	
	 C. 7	
	 D. 12	
	 E. n-1

anonymous · Answer

@ganeshie8

anonymous · Answer

@Luigi0210

anonymous · Answer

For this kind of test, degrees of freedom is equal to (number of rows - 1)*(number of columns - 1). D