There is actually a difference of several inches in the mean heights for the population of men and the population of women. However, a student doing a school project tries to investigate male vs. female height using a sample of each gender. By pure chance, he happens to have gotten a sample fairly tall women and a sample of fairly short men. So he wrongly concludes that there is no difference in the mean heights for men and women. What has happened? Group of answer choices The student has made the correct decision The student has made a type I error The student has made a type II error Need more information to answer