Question 25

Question Completion Status: "A health psychologist wants to determine whether a new exercise effects the rate of heart attacks because the exercise requires no equipment and, therefor can be done without cost.If testing at an alpha level of 0.05, which of the following z-crticical values will be used to to determine statistical significance." amin +/- 1.980 woo +/- 2.58" -1.65" 2.33* O . 1.65 O -2.33