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Mathematics, 11.11.2020 18:00 yasyyas646646

The following is a set of hypotheses, some information from one or more samples, and a standard error from a randomization distribution. Test H0 : p=0.28 vs Ha : p<0.28 when the sample has n=800, and p^=0.217 with SE=0.01. Required:
Find the value of the standardized z-test statistic.

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