Question

The following contingency table presents observed frequencies. 19 14 13 19 2 7 12 15 10 3 23 27 12 24 c D Send data Part 14 Compute the expected frequencies for the row corresponding to A. Round the answers to at least three decimal places. Part 2 of 4 Compute the expected frequencies for the row corresponding to B. Round the answers to at least three decimal places.

Answer 1

Solution-:

Given table shows obsreved frequencies (Oi):

	1	2	3
A	19	7	23
B	14	12	27
C	13	15	12
D	19	10	24

We find the corrsponding expected frequencies (eij) by using formula,

for i=A,B,C,D and j=1,2,3

So we prepare following table:

	1	2	3	Total(Ai)
A	19	7	23	49
B	14	12	27	53
C	13	15	12	40
D	19	10	24	53
Total (Bj)	65	44	86	N=195

Then, using above formula we prepare table of expected frequencis (eij) as follows:

	1	2	3
A	16.333	11.056	21.610
B	17.667	11.959	23.374
C	13.333	9.026	17.641
D	17.667	11.959	23.374

Part 1

	1	2	3
A	16.333	11.056	21.610

Part 2

	1	2	3
B	17.667	11.959	23.374

Part 3

	1	2	3
C	13.333	9.0256	17.641

Part 4

	1	2	3
D	17.667	11.959	23.374