Question

# Kuya is relocating to China to manage a local branch of world news broadcasting station. He...

Kuya is relocating to China to manage a local branch of world news broadcasting station. He needs to decide on which mobile phone providers he should select based on a sample data of monthly charges from various subscribers. He came to you with the data to determine the provider with the lowest charges, on the average. Which provider would you advise Kuya to select?

 Mobile Unicom Telecom 62 60 62 55 71 58 69 64 68 58 65 57 56 67 63 63 64 57 63 71 69 63 72 68 64 65 67 64 64 69 64 65 68 64 70 60 57 71 63 61 64 69 59 68 69 57 67 66 57 72 62 53 71 66 51 64 67 62 68 62 59 72 60 71 65 59 59 73 57 58 72 59 68 73 65

The appropriate test for this problem is:

 one-way ANOVA
 repeated measurements

The obtained statistic is:

 F = 17.7
 F = 1.77
 F = 7,71
 F = .177

The associated p value is:

 < .05
 < .01
 < .001
 < .0001

Decision is:

 reject the null
 retain the null

Conclusion is:

 1)go with Mobile
 2)go with Unicom
 3)a toss up between Mobile and Unicom
 4)no conclusion can be drawn

applying one way ANOVA on above data:

 Groups Count Sum Average Variance Mobile 25 1517 60.68 23.47667 Unicom 25 1698 67.92 13.99333 Telecom 25 1590 63.6 18.75 ANOVA Source of Variation SS df MS F P-value Between Groups 663.39 2.00 331.69 17.70 0.0000 Within Groups 1349.28 72.00 18.74 Total 2012.67 74.00

The appropriate test for this problem is- one-way ANOVA

The obtained statistic is: F = 17.7

The associated p value is: < .0001

Decision is: reject the null

Conclusion is: 1)go with Mobile

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