Ais a numerical quantity computed from the data of a sample and is used in reaching a decision on whether or not to reject the null hypothesis. a. significance level b. critical value c. test statistic d. parameter

The answer for the completion exercise shown above is the second option (option b), which is:

 b. critical value.

 Therefore, you have that the text is: "A critical value is a numerical quantity computed from the data of a sample..."

 This numeral quantity is used in statitics. Then, if the absolute value is greater that the quantity defined before, the null hypothesis must be rejected.