0 Question 4 v B 011 pl At a restaurant, the density function for the time a customer has to wait before being seated is given by 0 if t [:4 0/1 pt '5 Find the area of the shaded region under the standard normal distribution to the left of the given z-score. Round your answer to four decimal places. 0 Question 6 v Find z-score such that the area under the standard normal curve to its left is 0.894 2- score =