Objective II
To find out the causes of global
warming in Erhoike community
warming in Erhoike community
Step 1: Formulate Hypothesis
Ho:
There are no causes of global warming in Erhoike community
There are no causes of global warming in Erhoike community
Step II: Choose Alpha (α) and Degree of Freedom (df)
Let
α =0.05
α =0.05
Df =(C-1)(R-1)
= (2-1)(3-1)
=1×2=2
Therefore, α=0.05, at 2df=5.991
Computer x2 table II
|
О
|
Ε
|
О-Ε
|
(О – Ε)²
|
(О –Ε)²/E
|
|
85
|
84.3
|
0.7
|
0.49
|
0.0058
|
|
100
|
84.3
|
15.7
|
246.49
|
2.9240
|
|
68
|
84.3
|
16.3
|
265.69
|
3.1517
|
|
35
|
35.7
|
0.7
|
0.49
|
0.0137
|
|
20
|
35.7
|
15.7
|
246.49
|
6.9045
|
|
52
|
35.7
|
16.3
|
265.69
|
7.4423
|
|
Total
|
20.442
|
|||
Step VI: Apply Decision Rule
Since x2 calculated 20.4 is
greater than table value of x2 0.05=5.991, the researcher therefore
rejected the null hypothesis and concluded that there are causes of global
warming in Erhoike community.
greater than table value of x2 0.05=5.991, the researcher therefore
rejected the null hypothesis and concluded that there are causes of global
warming in Erhoike community.
