Which of the following does not need to be known in order t

. Which of the following does not need to be known in order to compute the p-value?

a. knowledge of whether the test is one-tailed or two-tailed

b. the value of the test statistic

c. the level of significance

d. None of these alternatives is correct.

P-value of a test is depend on following:

1. whether test is one tailed or two tailed

2. test statitics

3. degree of freedom (if required , for example it is not required in z-test)

After computing p-value we compare it with level of significance.

Hence, option (c) is correct.