Out of 8000 graduates in a town, 800 are females and out of 1600 graduates
employees. 120 are females. Use x2
to determine if any discrimination is made in
appointment on the basis of gender.
Answers
Answer:
Explanation:
Employment Unemployment Total
Males 1480 5720 7200
Females 120 680 800
Total 1600 6400 8000
Let us take the null hypothesis that no distinction is made in appointment on the basis of sex.
Applying x² test
E₁₁ = 7200 /8000 ₓ 1600 = 1440
The table of expected frequencies is given below:
1440 5760 7200
160 640 800
1600 6400 8000
Observed freq Expected freq ( Oi - Ei)² ( Oi - Ei)² /Ei
1480 1440 1600 1.111
120 160 1600 10.00
5720 5760 1600 0.278
680 640 1600 2.500
13.889
x² = 13.889