sample proportions and p value

Statistics
Tutor: None Selected Time limit: 1 Day

In the context of a hypothesis test for two proportions, which of the following statements about the pooled sample proportion,

p , is/are true?
I. It estimates the common value of  p1and p2 under the assumption of equal proportions.
II. It is obtained by averaging the two sample proportions p1ˆ and p2ˆ .
III. It is equal to the proportion of successes in both samples combined.
Jul 29th, 2015

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It estimates the common value of p1and p2 under the assumption of equal proportions.

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Jul 29th, 2015

Is II or III also correct?

Jul 29th, 2015

two can be if conditions apply but three is false

Jul 29th, 2015

Thanks!

Jul 29th, 2015

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Jul 29th, 2015
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