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A large manufacturing company investigated the service it received from suppliers and discovered that, in the past, 32% of all materials shipments were received late. However, the company recently installed a just-in-time system in which suppliers are linked more closely to the manufacturing process. A random sample of 118 deliveries since the just-in-time system was installed reveals that 22 deliveries were late. Use this sample information t test whether the proportion of late deliveries was reduced significantly.
A severe storm has an average peak wave height of 16.4 feet for waves hitting the shore. Suppose that a storm is in progress with a severe storm class rating. Let us say that we want to set up a statistical test to see if the wave action
the westhouser paper company in the state of washington currently has an option to purchase a piece of good timber
What is the sample space and what is the probability of obtaining a total of 5 for the two cards?
Why do you think it's necessary to study the fundamentals of probability when learning statistics? Identify and describe an example of using probability in biostatistics
1. It cost a contractor $9,765 to manufacture their first unit. The company expects to experience an 82% unit learning curve. Estimate the cost of the 7th unit. (Round intermediate calculations to 4 decimal places) Possible answers: $ 7,615 $ 8,593 $..
It is estimated that such a programme will cost $7m and that the probability of flu striking in the next year is 0.75 - With the aid of a decision tree, determine, quantitatively, the optimal c ourse of action the committee should take.
Henry performed a two-tailed test for an experiment in which N=24. He could not find his table of t critical values, but he remembered the tcv at df=13. He decided to compare his tobt with this tcv. Is he more likely to make a Type I or a Type II err..
Annual salary plus bonus data for chief executive officers are presented in the Business-Week Annual Pay Survey.
The cryptanalyst computes y = Dx' (c0), where D is the decipherment function corresponding to E, for each possible key x', and then checks the table to see if y is in it. If so, (x, x') is a candidate for the key pair. How should the table be ..
A machine is designed to always have a compound weighing 20.4. the machine has a defect and it doesnt always produce the compound with the precise weight. assume the distribution of the weights of the compounds produced by the machine is normal..
It has been stated that 75% of the population have a smart phone. If you randomly choose 10 people, what is the probability that at least 9 people will say they have a smart phone?
Way around B&W plots
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