Homework Answers
Ho: distribution is same
Ha: distribution is different
| observed frequencey, O | expected proportion | expected frequency,E | (O-E) | (O-E)²/E | |
| 17 | 0.143 | 20.00 | -3.00 | 0.450 | |
| 21 | 0.143 | 20.00 | 1.00 | 0.050 | |
| 22 | 0.143 | 20.00 | 2.00 | 0.200 | |
| 18 | 0.143 | 20.00 | -2.00 | 0.200 | |
| 23 | 0.143 | 20.00 | 3.00 | 0.450 | |
| 24 | 0.143 | 20.000 | 4.00 | 0.800 | |
| 15 | 0.143 | 20.000 | -5.00 | 1.250 |
chi square test statistic,X² = Σ(O-E)²/E =
3.400
level of significance, α= 0.01
Degree of freedom=k-1= 7 -
1 = 6
P value = 0.7572 [ excel function:
=chisq.dist.rt(test-stat,df) ]
Decision: P value >α , Do not reject Ho
............
Please let me know in case of any doubt.
Thanks in advance!
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