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Based on the information given for each of the following studies, decide whether to reject the null hypothesis. For each, give the Z-score cutoff (or cutoffs) on the comparison distribution at which the null hypothesis should be rejected, the Z score on the comparison distribution for the sample score and your conclusion. Assume that all population are normally distributed.

Population

Study	U	O	Sample Score	p	Tail of Tests
A	5	1	7	.05	1 (high predicted)
B	5	1	7	.05	2
C	5	1	7	.01	1 (high predicted)
D	5	1	7	.01	2

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M918400

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