# Statistics Testing - ignificance difference between two populations mean

Document Sample

Sub: Statistics                                                                                   Topic: Testing

Question:
To test whether the significance difference between two populations mean using
the two proportion test

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A study of cats and dogs found that 11 of 50 cats and 21 of 50 dogs slept more than 10 hours
per day. At the .05 level of significance, is there sufficient evidence to conclude that a
difference exists between the proportion of cats and the proportion of dogs that sleep more
than 10 hours per day?

A) No, there is not sufficient information to reject the hypothesis that the proportion of cats
and the proportion of dogs that sleep more than 10 hours per day are the same because the
test value –0.65 is inside the acceptance region (-1.96,1.96).

B) Yes, there is sufficient information to reject the hypothesis that the proportion of cats and
the proportion

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 views: 183 posted: 4/30/2010 language: English pages: 3
Description: To test whether the significance difference between two populations mean using the two proportion test - A study of cats and dogs found that 11 of 50 cats and 21 of 50 dogs slept more than 10 hours
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