Suppose That the Following Is to Be Tested: H0: P

Multiple Choice

Suppose that the following is to be tested: H0: p = 0.72 and Ha: p × 0.72. Calculate the observed z- statistic for the following sample data: Sixty- eight out of ninety test subjects have the characteristic of interest. Round to the nearest thousandth.

A) z = 0.751
B) z = 0.756
C) z = - 0.751
D) z = 0.453