Question

 

Choosing a right internet provider among consumers in Malaysia has been attract public attention. Table below shows the public rating towards Malaysia Internet providers service during the Moving Control Order (MCO) from 18-31 Mac 2020. Students are requiring to solve the current issue by using the correct statistical method to test whether all the internet provider are equality same. Test at 5% significance level.

Evaluation	Digi	Celcom	Maxis	U-mobile
Very good	40	35	47	28
Moderate	37	41	35	27
Very bad	53	29	43	35

Answer 1

let us consider the null and alternative hypothesis is

Ho:all the internet provider are equality same

Ha: all the internet provider are different

Chi-Square Test
Observed Frequencies
	Column variable			Calculations
Evaluation	Digi	Celcom	Maxis	U-mobile	Total		fo-fe
Very good	40	35	47	28	150		-3.33333	0	5.333333	-2
Moderate	37	41	35	27	140		-3.44444	8.333333	-3.88889	-1
Very bad	53	29	43	35	160		6.777778	-8.33333	-1.44444	3
Total	130	105	125	90	450
Expected Frequencies
	Column variable
Evaluation	Digi	Celcom	Maxis	U-mobile	Total		(fo-fe)^2/fe
Very good	43.33333	35	41.66667	30	150		0.25641	0	0.682667	0.133333
Moderate	40.44444	32.66667	38.88889	28	140		0.293346	2.12585	0.388889	0.035714
Very bad	46.22222	37.33333	44.44444	32	160		0.993857	1.860119	0.046944	0.28125
Total	130	105	125	90	450
Data
Level of Significance	0.05
Number of Rows	3
Number of Columns	4
Degrees of Freedom	6
Results
Critical Value	12.59159
Chi-Square Test Statistic	7.09838
p-Value	0.311845
Do not reject the null hypothesis

Since p value of the test stat is greater than 0.05 so we do not reject Ho and concluyde that all the internet provider are equality same