Question

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

	under 30	30-39	40-49	50 and over	total
promoted	9	29	32	0	80
not promoted	41	41	48	40	170
totals	50	70	80	50

a. Find the expected number for each cell of the crosstabs table under the hypothesis of independence

b. What is the degrees of freedom for this problem?

c.Is there a statistically significant relationship between age and promotions using alpha = 0.05?

Answer 1