Question 39 1 pts Ho: P1 - P2 - 0 Ha: P1 - P2 = 0 A researcher wants to test the hypotheses above. They collect data from two groups. In the first group they observe 8 successes and 13 failures. In the second group they observe 4 successes and 15 failures. Given this information, is it appropriate to use the normal approximation method to conduct this hypothesis test? O No, it is not appropriate to use the normal approximation method O Yes, it is appropriate to use the normal approximation method