A sample of n = 9 individuals is selected from a population with u - 60 and o = 6, and a treatment is administered to the sample. After treatment, the sample mean is M = 66. What is the value of Cohen's d for this sample? O 0.50 O 0.33 O 2.00 O 1.00 Question 2 5 pts By selecting a larger alpha level, a researcher is O better able to detect a treatment effect increasing the risk of a Type I error O All of the other options are the result of selecting a larger alpha level. O attempting to make it easier to reject Ho Question 3 5 pts You complete a hypothesis test using a = .05, and based on the evidence from the sample, your decision is to reject the null hypothesis. If the treatment actually has no effect, which of the following is true? O You have made a Type II error. O You might have made a Type I error, but the probability is only 5% at most. O You have made a Type I error. O You have made the correct decision