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An article is to be restocked every three months in a year. The quarterly demand U is random and its law of probability in any of the quarters is as given below.
The cost of stocking an article for a unit of time is 4, and when the stock is exhausted, there is a scarcity charge of 12.
The orders that are not satisfied are lost, in other words, are not carried forward to the next period. Further, the stock cannot exceed three articles, owing to the restrictions on space.
Find the annual policy of restocking the article so as to minimize the expected value of the sum of the cost of stocking and of the scarcity charge
By using.02 level of significance, carry out a 5-step hypothesis testing procedure to find out if new processes considerably reduced the wait time.
A laboratory tested 70 chicken eggs and found that the mean amount of cholesterol was 229 milligrams with s = 19.9 milligrams. Construct a 95% confidence interval for the true mean cholesterol content of all such eggs.
Let the random variable X represent the number of light bulbs selected that function properly (i.e., that are not defective). Define the appropriate probability density function for X. What is the probability space for the experiment?
clark heste is an industrial engineer at lyones products. he would like to determine whether there are more units
The producer's risk in a sampling program is 0.05 and the consumer's risk is 0.10; the AQL is 0.03 and the LTPD is 0.07. (a) What is the probability of accepting a lot whose true proportion of defectives is 0.03?
twelve randomly selected mature citrus trees of one variety have a mean height of 13.8 feet with a standard deviation
You have ordered 10 bags of cement, which are supposed to weigh 94 kg each. The average weight of the 10 bags is 93.5 kg. Calculate the condence interval in R, and write the code you used
find the value of z that would be used to test the difference between the proportions given the following. use g - h.
In, addition, the company has decided to purchase at least three of the new Econo-Tankers for use on short-run, low-demand routes. As a final constraint, the conpany deos not want more than half the new models to be Super Tankers.
Write a computer program to simulate the queue in Exercise 20. Have your program keep track of the proportion of the time that the queue length is j for j = 0, 1, . . . , n and the average queue length.
Contracts for two construction jobs are randomly assigned to one or more of three firms, A, B, and C. Let Y1 denote the number of contracts assigned to firm A and Y2 the number of contracts assigned to firm B. Recall that each firm can receive 0, ..
daves photography store stocks a particular model camera that can be ordered weekly. the demand for this camera is
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