Making handcrafted pottery generally takes two major steps

Last updated: 11/12/2023

Making handcrafted pottery generally takes two major steps wheel throwing and firing That is the time for a piece of pottery to be finished is the sum of the time associated with these two steps The time for wheel throwing and the time for firing are each normally distributed random variables with means of 50 min and 70 min and standard deviations of 5 min and 7 min respectively That is if we let the random variable X represent the time for wheel throwing then X N 50 25 Furthermore if we let the random variable Y represent the time for firing then Y N 70 49 Part a 5 points Assuming the time required for wheel throwing and firing are independent what is the probability that a piece of pottery will be finished within 110 minutes Part b 5 points Let X denote the wheel throwing time required for the i th piece of pottery produced Suppose X N 50 25 for each i and the X variables are independent of each other Let X denote the average wheel throwing time required by the first 5 pieces of pottery What is P 53