Question: A study of potential age discrimination considers promotions among middle–level administrators in a public university. The data are as follows:

a. (2 points) Find the expected number for each cell of the crosstabs table under the hypothesis of independence.

a. (1 point) What are the degrees of freedom equal to for this problem?

a. (2 points) Is there a statistically significant relationship between age and promotions, using \[\alpha =0.05\] ?

a. (2 points) Can the hypothesis of independence be rejected using a reasonable \[\alpha \] ?

a. (3 points) What is the effect of combining age categories? Compare the answers to those obtained from the data that used the four-category age variable.