Age Under 30 30 - 39 40 - 49 50 and Over Total Promoted (Expected) 9 (16.00) 29
ID: 3293853 • Letter: A
Question
Age
Under 30
30 - 39
40 - 49
50 and Over
Total
Promoted
(Expected)
9
(16.00)
29
(22.40)
32
(25.60)
10
(16.00)
80
(80.00)
Not Promoted
(Expected)
41
(34.00)
41
(47.60)
48
(54.40)
40
(34.00)
170
(170.00)
Totals
50
(50.00)
70
(70.00)
80
(80.00)
50
(50.00)
250
(250.00)
Question: What is the Chi Square value for the cell where Not Promoted and 40 – 49 come together (The (2 , 3) cell?
Age
Under 30
30 - 39
40 - 49
50 and Over
Total
Promoted
(Expected)
9
(16.00)
29
(22.40)
32
(25.60)
10
(16.00)
80
(80.00)
Not Promoted
(Expected)
41
(34.00)
41
(47.60)
48
(54.40)
40
(34.00)
170
(170.00)
Totals
50
(50.00)
70
(70.00)
80
(80.00)
50
(50.00)
250
(250.00)
Explanation / Answer
Ans:
Chi square for not promoted and 40-49=(O-E)2/E=(48-54.4)2/54.4=0.753
Calculations for Chi square:
Observed(O) Age Under 30 30 - 39 40 - 49 50 and Over Total Promoted 9 29 32 10 80 Not promoted 41 41 48 40 170 Total 50 70 80 50 250 Expected(E) Age Under 30 30 - 39 40 - 49 50 and Over Total Promoted 16 22.4 25.6 16 80 Not promoted 34 47.6 54.4 34 170 Total 50 70 80 50 250 Chi square=(O-E)^2/E Age Under 30 30 - 39 40 - 49 50 and Over Total chi square= Promoted 3.063 1.945 1.600 2.250 13.025 Not promoted 1.441 0.915 0.753 1.059