Question

There are four major political parties in the country Treon. A public research group is interested in finding out whether there is any relationship between the party that is supported by a citizen of Treon and that citizen's socio-economic status. For the purposes of a study, socio-economic status is broken up into four different categories: poverty, working class, middle class, and upper class.

A survey is conducted where many people are asked which major party they vote for and their socio-economic status. The data from this survey is used in the ÷2 hypothesis test with 95% confidence and the following hypotheses:

H0: There is no relationship between party affiliation and socio-economic status.

H1: There is a relationship between party affiliation and socio-economic status.

The test statistic for this test is calculated to be 13.845.

a) Calculate the number of degrees of freedom (df) in the ÷2 distribution that is followed by this test statistic. Give your answer as a whole number.

df =

b) The null hypothesis (is or is not) rejected

Answer 1

I don't know what you mean by "the ÷2 distribution."

Answer 2

sorry it means an chi squared test x^2