The half-life of a certain type of milk produced by RBB is 45 days with a variance of 25 days2. It is also known that during the labeling process, 9% of the packages lack the expiration date. a) A sample of 35 milk containers is taken, what will be the IP if 4 of them do not have an expiration date? Answer b) From two batches of 500 containers of this milk, samples of 100 and 130 units are taken, respectively; What will be the IP that in the first sample there are no more than 2% of containers with no expiration date compared to the second sample? Answer c) What will be the PI if the half-life of the first sample is between 1 and 2 days longer than the half-life of the second sample? Answer d) Suppose a sample of half a dozen milk containers is taken from the first batch; What will be the IP if its standard deviation is between 4.8 and 5.7 days?