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A newspaper stand purchases newspapers for $0.36 and sells them for $0.50. The shortage cost is $0.50 per newspaper (because the dealer buys papers at retail price to satisfy shortages). The holding cost is $0.002 per newspaper left at the end of the day. The demand distribution is a uniform distribution between 200 and 300. Find the optimal number of papers to buy.
1) Twenty-five factory workers were asked how many vacation days they take a year. The average of the sample was 22.85 days, and the standard deviation was 5.80 days. In the past HR uses an average of 25 vacation days per worker in order to ..
A random sample of 13 four-cylinder cars is obtained and the breaking distances are measured and found to have a mean of 137.5 ft and a standard deviation of 5.8 ft.
Professors at a local university earn an average salary of $80000 with a standard deviation of $6000. The salary distribution is approximately bell-shaped. What can be said about the percentage of salaries that are at least $74,000
Describe a series of steps that could be used to write fractions like 3/4, 2/5, 5/6, 11/8, 3/10, 19/15, 7/20, 8/25, 9/40, or 17/50 in decimal form.
1. distinguish between classification and tabulation of data. what are the types of classification of data?2. calculate
Two pediatricians want to investigate a new laboratory test that identifies streptococcal infections. Dr. J uses the standard culture test, which has a sensitivity of 90% and a specificity of 96%. Dr. M uses the new test, which is 96% sensitive an..
in a survey of 490 potential jurors one study found that 350 were regular watchers of at least one crime-scene
What percentage of the variation in y can be explained by the corresponding variation in x and the least-squares line?
Construct a time series plot. What type of pattern exists in the data and show the four-quarter and centered moving average values for this time series.
Determine the relationships among data above? Analyze with charts/graphs/tables and a discussion.
What is the prior probability the bid will be successful (i.e.. prior to receiving the request for additional information)?
Suppose that 20% of the population has high blood pressure. If 7 people are randomly selected off the street, what is the probability that more than 4 of them do not have high blood pressure?
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