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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.
Henry did tax work for Joe electrician. Bill was $900, Hnery reduced it to $600. Joe did wrok for Henry at cost of $700. Henry gave Joe a check for $400, said remaining $300 was th
1) Describe the five major principles that support communication-style theory. 2) What two dimensions of human behavior are used to identify communication style? 3) What are
Describe the change management factors that shape HR-business strategy.
What are the advantages of predetermined time standards (PTS)? Answer: Quicker and cheaper than time study; likely to be more reliable; valuable for estimating new jobs; can be
Statutory law is: Answer a law enacted by a legislative body also known as the fundamental law of the nation a form of common law the separation of powers at the federal level all
1. How does the Fair Debt Collection Practices Act benefit consumers? 2. Why was the Federal Food, Drug, and Cosmetic Act passed? Please use at least one research site to sup
Successful Entrepreneurial Organizations identify an entrepreneurial organization that has been successful for at least 10 years. What factors have contributed to the organization'
From an evolutionary standpoint, is "survival of the fittest" selfish or selfless?
The Bawl Corporation supplies alloy ball bearings to auto manufacturers in Detroit. Because of its specialized manufacturing process, considerable work-in-process and raw materials
A fleet repair facility has the capacity to repair 900 trucks per month. However, due to scheduled maintenance of their equipment, management feels that they can repair no more tha
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