4. Let y1 and y2 be two independent draws from the distribution Y~N(50,16). a. What is the probability that y, will be greater than 56 (i.e., Prob (y1) > 56)? b. What is the probability that y1 > 52? C. What is the probability that y1 > 52? d. Find the critical value y* for which there is a 5% chance that y, > y*. e Find the value b for which there is a 5% chance that y, > # + b or V1