A school district is considering going to a 12-month schedule, with students att

Question

A school district is considering going to a 12-month schedule, with students attending school for three 3-month periods with a break of one month between trimesters. A sample of 209 of the school district?s parents was conducted. The responses were categorized as to (1) number of children in the family and (2) opinion on the new schedule. The results are summarized below. Opinion We would like to do a chi-square test to see if opinion is independent of number of children. How many degrees of freedom would be appropriate? Select one: a. 9 b.16 c.4 d. 1

Explanation / Answer

There are 3 rows and 3 columns. So the degrees of freedom = (r-1)(c-1) = 2*2 = 4.

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