00:01
So in this question, we are given the review period to be equal to seven days, which is the same as one week.
00:14
And we are given the late time to be equal to three days.
00:22
So we're giving the main demand for one day, to be equal to 20.
00:31
The main demand for 10 days will be 20 plus 10.
00:43
So 20 times 10.
00:45
So we get 200 and the daily standard deviation is 4.
00:55
So the standard deviation for 10 days will be equal to the root of 10 times 4.
01:11
So we get 12 .6491, which is approximately 12 .65.
01:21
So when we come to the part a, here we want to find the stock out unit.
01:32
So we have z is equal to the base, or we can first do the part b, then we come to the a, so let's start with the b.
01:44
So we want to find the base stock...