A researcher is investigating program outcomes for a state social agency. Two institutions provide program services, Facility A and Facility B. The researcher needs to examine whether the program participants differ. Facility A has 125 participants, their average age is 16.5, and the standard deviation is 1.5. Facility B has 85 participants, their average age is 17, and the standard deviation is 1.9. The researcher has set an alpha at 99%. Question: What is the z-score for an alpha of 99%? Group of answer choices */- 2.58 +/-2.38 +/- 1.96 +/-0.05