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A business researcher is testing the following hypotheses using a 1% level of significance. p = .32 Ha:32 A sample of 671 is taken and the sample...

A business researcher is testing the following hypotheses using a 1% level of significance.
H0: p = .32
Ha: p ≠ .32
A sample of 671 is taken and the sample proportion is .38. The critical z value and observed z value are respectively:




2.33, 3.33


2.33, 3.11


2.575, 3.33


2.575, 3.11

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