If the sample size increases from 25 to 100 and the level of significance stays the same, inen the risk of a Type II error would decrease. ( the risk of both Type I and Type II errors would decrease O the risk of neither Type I nor Type II error would decrease the risk of a Type I error would decrease. 4. The discrete random variable X is the number of students that show up for Professor Smith's a hours on Monday afternoons, The table below shows the probability distribution for X What is expected value EX) for this distribution? X 2 3 Total 40 20 100 O 20 O 15 O 12 O 10 5. When we reject the null hypothesis, we are exposed to O Type l error. Type I error O neither Type I nor Type II error O either Type For Type II erron