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1. The average lateness for one of the top airline companies is 10 minutes. The Standard Deviation of the lateness measure is calculated as 3. An airplane arrived 8.5 minutes after the stated arrival time. Calculate the Z-score of the airplanes lateness
2. Health insurers and the federal govt are both putting pressure on the hospitals to shorten average length of stay of their patients. A random sample of 20 hospitals in one state had a mean length of stay for non heart patients in 2000 of 3.8 days and a SD of 1.2 days. Calculate a 95% confidence interval for the population mean LOS for non heart patients in the states hospitals.
3. At a local manufacturing plant employees must complete new machine set ups within 30 minutes. New machine set up times can be described by a normal model with a mean of 22 minutes and a SD of four minutes. What percent of new machine set ups take more than 30 minutes?
4.A random sample of 100 European professional soccer players has an average age of 27 years and a SD of 4 years. We would like to decide if there is enough evidence to establish that average age of European soccer players is significantly more than 26 years. What is the nul hypothesi?
5. What is the sample value of the test statistic?
6. At 0.01 level of significance, what decision would you make? Include proper reason.
What is the agency problem? What steps can be taken to solve it? Why is it important for managers and organizations to behave ethically?
A main outcome of electronic data interchange (EDI) is To save paperwork by using structured electronically transmitted data.
Three possible manufacturing systems can be used to produce a certain product, 1) ten universal milling machines that work in series, each one is producing a specific geometry, 2)
How do you think management changed over the years in respect to the following? Organizational culture Corporate responsibility and ethics Culture and diversity conflicts
Describe the advantages and disadvantages of the various methods of data collection.
What is Diversification? Ans: Diversification is guiding activities into different lines of business.
The current order quantity for Paul's Pasta Pinwheels is 200 boxes. The order cost is $4 per order, the holding cost is $0.40 per box per year, and the annual demand is 500 boxes p
Characteristics of Continuous or Flow Production Flow of Material: The flow of materials is continuous and there is little or no queuing at any stage of processing. Mac
What is the primary objective of supply chain management
A hamburger factory produces 40,000 hamburgers each week. The equipment used costs $5,000 and will remain productive for 4 years. The labor cost per year is $9,500. a. What is the
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