A survey was conducted among 500 Quebec workers.They were asked for their opinion on this

which relates to a decrease in state spending on social assistance programs.We have them

also asked if they were unionized or not

We want to know if there is a difference of opinion (on the reduction in state spending in social assistance programs) between union members and non-union members.Consider the five following proposals

P: The non-unionized are less favorable (than the unionized) to a reduction in expenses.

P: There are the same number of union members and non-union members for each opinion expressed.

P: Union members are more inclined to cut spending.

P: Union members and non-union members have opinions distributed in the same proportions.

P: There is no difference of opinion between union members and non-union members.

Which of these propositions could serve as a null hypothesis for the independence test?

For a reduction in expenses In Indifferent Disagree Total agreement Unionized 140 50 90 280 Not unionized 100 70 50 220 Total 240 120 140 500