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A teller at a drive-up window at a bank had the following service times (in minutes) for 20 randomly selected customers:a. Determine the mean of each sample.b. If the process parameters are unknown, estimate its mean and standard deviation.c. Estimate the mean and standard deviation of the sampling distribution.d. What would three-sigma control limits for the process be? What alpha risk would they provide?e. What alpha risk would control limits of 4.14 and 4.86 provide?f. Using limits of 4.14 and 4.86, are any sample means beyond the control limits? If so, which one(s)?g. Construct control charts for means and ranges using Table. Are any samples beyond the control limits? If so, which one(s)?h. Explain why the control limits are different for means in parts d and g.i. If the process has a known mean of 4.4 and a known standard deviation of .18, what would three-sigma control limits be for a mean chart? Are any sample means beyond the control limits? If so, which one(s)?
Education is often used as an indicator of a person's socioeconomic status. Historically, the number of years of schooling completed has been recorded in the census of population as a measure of education. Comment and support your reasoning
Stoneware Pottery Company wants to determine how many bowls and mugs should be produced per day in order to maximize profit given the labor and material constraints. The unit profit value for Bowls is $40 per unit, for mugs the unit profit value is $..
What is the minimum reliability each one must have in order for the overall system to have a reliability of .98?
The process is known to operate at a mean thickness of 3.0 mm. What is the Cpk for this process? About what % of all units of this liner will meet specifications?
a)What is the economic production quantity? b)How many production runs per year will be made? c) What will be the maximum inventory level? d) What percentage of time will the facility be producing components?
The Production Department can increase its productivity by 5% for each new PC it gets. The Marketing Department can increase its productivity by 3% for each new PC it gets. The Finance Department can increase its productivity by 2% for each new PC it..
Calculate the ownership cost per hour of a 1044 kW excavator with a capital cost of $6,000,000 and an economic life of 10,000 hours over seven years under average operating conditions. The residual value of the machine at disposal is 25 percent of th..
What do you think are the major causes of why so many projects do not achieve their level of expectation? If you are assigned a major project, what process would you put into place that might lead to success and why?
How do most countries with similar levels of per capita income differ from and resemble the United States with respect to cost, quality and access to health care? How does the United States compare to other OECD countries with respect to the WHO syst..
What is your understanding of the term: Brand Equity? How do marketers develop brand equity for their products/services relative to competition? Provide an example of a brand/product/service.
What five physical areas between people does differential psychology focus on identifying? Is it important for managers to understand their employees' differences? Why or why not? Explain your viewpoint by giving a minimum of two specific examples..
Write 100 to 150 words answering the following bullets. Please provide references. Identify three services and products of a Medical Claims Reviewer.
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