An index that is calculated from sample data and whose value determines whether to accept or reject a null hypothesis is a
A)test statistic
B)critical value
C)significance level
D)decision rule

Question

Quizplus · Accepted Answer

A test statistic is calculated from the sample data and is used to determine the probability of obtaining a result as extreme or more extreme than the observed result, assuming the null hypothesis is true. This probability is then compared to a predetermined significance level to decide whether to reject the null hypothesis or not. The critical value and decision rule are dependent on the specific hypothesis test being performed, while the significance level is predetermined before conducting the test.

An Index That Is Calculated from Sample Data and Whose