Stats Project (6) X-Box vs. PS3
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By Ryan Espinoza Matt Pruett
description
A solid project by Matt and Ryan. Well done, gentlemen.
Transcript of Stats Project (6) X-Box vs. PS3
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ByRyan Espinoza
Matt Pruett
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Which gaming system is the preferred system for the general population: Xbox 360 or PS3?
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Ho: There is no preference between the two systems
Ha: There is a preference between the two systems
?
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Chi-square Goodness of Fit test
22 ( exp)
exp
obs
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Random Independent Large Sample Size
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Ask random members of the population n = 100
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2 22 66 50 (34 50)
50 5010.24
.001P
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p= .001 Reject Ho There is a preference between the two
systems
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Convenience Sampling Biased
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What features made the Xbox 360 more preferred?
If both systems were the same price, would the Xbox 360 still be preferred?
Make sampling more random
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Observed Expected
Xbox 360 66 50
PS3 34 50
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