question 4

Select all of the following statements which are true concerning the P-value of a hypothesis test. Select one or more: O a. P-values are always between 0 and 1. O b. P-values are always calculated using a t distribution. O c. P-values are calculated assuming the Ho is true. O d. P-values for a test of a population proportion Ho : P = Po are calculated using the standard normal distribution. O e. P-values represent the probability the Ho is true