Question 2. (5 points total. Each part is worth 1 point.) You are testing the null hypothesis that the average amount of money that a BC student has in their pocket is exactly $20. You decide to test at a 5% significance level. We know the population variance is 81 dollars squared. You take a random sample of 100 students. a. (1 point) Calculate the power of this test if the true mean is $23. b. (1 point) What does the power equal if we changed to 0.107? d. (1 point) What if the population variance was really 25 dollars squared instead of 81 dollars squared? @ ) ) c. (1 point) What if we changed our sample size to 367 ) ) . (1 point) What if the true population mean is $22