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A chemical firm produces sodium bisulfate in 100-pound bags. Demand for this product is 20 tons per day. The capacity for producing the product is 50 tons per day. Setup costs $100, and storage and handling costs are $4 per ton a year. The firm operates 200 days a year. (Note: 1 ton = 2,000 pounds.) The Friendly Sausage Factory (FSF) can produce hot dogs at a rate of 5,000 per day. FSF supplies hot dogs to local restaurants at a steady rate of 280 per day. The cost to prepare the equipment for producing hot dogs is $66. Annual holding costs are 45 cents per hot dog. The factory operates 297 days a year.
The National Highway Association is studying the relationship between the number of bidders on a highway project and the winning (lowest) bid for the project.
Draw a scatter diagram of the following bivariate data.
The population standard deviation is σ2 = 7. Test that the population means differ using a 1% significance level.
1.A study conducted at VP1&SU to determine if certain static arm strength measures have an influence on the "dynamic lift" characteristics of an individual.
assume that a simple random sample has been selected from a normally distribution population and test the given claim.
Supposing that both tests measure the same kind of ability, who has the higher score? If grading were done on a curve, what would their respective percentages be?
Standard deviation of 2.5 minutes. What does Chebyshev's Theorem say about the percentage of employees with commuting times between 58.6 minutes and 68.6 minutes?
(a) Find the average rate at which customers enter the station. (b) Find the average time that a customer spends in the station per visit.
For a normal distribution,
An insurance contract sold to (x) and (y) provides for a death benefit of 1 unit at moment of the first death. Find the initial annual rate of premium payment.
There were 3 defectives in the first batch and 5 in the second. Find a 95% confidence interval using the plus four method for the difference in the proportion of defectives.
calculate the variance and the standard deviation of this probability distribution?calculate the expected rate of
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