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What are the assumptions underlying common queuing models? What are the assumptions necessary for a queuing calculation?
Find the standard deviation using the rule of thumb for each of the data sets. Compare the two sets and describe what you discover.
A town's January high temperature averages 36oF with a standard deviation of 10oF, while in July the mean high temperature is 74oF and the standard deviation is 8oF. In which month is it more unusua
Test the claim that the selection process is biased against Mexican-Americans. What is the mean and standard deviation for the numbers of Mexican Americans?
Assuming the distribution of the amount spent on their first visit is approximately normal, what is the shape of the sampling distribution of the sample mean that will be used to create the desired
Two separate tests are designed to measure a student's ability to solve problems. Several students are randomly selected to take both tests and the results are shown below.
What is considered a medium effect size for a t test for dependent means?
Put a check mark by those possibilities where one measurement is above 10 and the other measurement is below 10, i.e. where high measurements tend to cancel low measurements. Use these possibilities
Bell-shaped and that 95% of all daily sales fell between $19,200 and $36,400. Based on this information what were the mean sales? What was the standard deviation?
Question: Assume that blood pressure readings are normally distributed with a mean if 116 and a standard deviation of 4.8. If the 36 people are randomly selected, How do I find the probability that
Two thousand numbers were randomly selected: 960 were odd numbers. At the 0.01 level of significance, test whether the proportion of off numbers is significantly different from 50%.
Twenty students randomly assigned to an experimental group receive an instructional program; 30 in a control group do not. After 6 months, both groups are tested on their knowledge
According to polcie sources a car with a certain protection system wil lbe recovered 85% of the time. If 100 stolen cars are randomly selected, what is the mean and standard deviation of the number
Group of businesswomen wish to open a high fashion boutique. Use alpha=0.01 to test whether or not the businesswomen should open their boutique in this neighborhood.
Three departments are involved in the production of these components. The time (in min per unit) required to process each component in each department is given, along with available capacity (in hou
Draw a scatter diagram. Based on the scatter diagram, does there appear to be any relationship between the number of assemblers and production? Explain.
This sample is 500 so the distribution of the sample means will be normal, no matter what the shape of the actual distribution of dollar losses.
Allen young must decide to invest 10,000 in stock or CD at interest rate of 9% if the market is good. He believes he can get 14% return. 8% with a fair market if the market is bad 0%. good market 0.
Three are selected from the box without replacement and regard to order what is the probability that all three of the disks are defective?
Before 1918, in a random sample of 13 wolves spotted in the region, what is the probability that 10 or more were male? What is the probability that 10 or more were female? What is the probability th
276 are positive. someone tells you that 50% of the tickets in the box show positive numbers. Do you believe it? Answer yes or no, and explain.
Formulate a linear programming model to determine how many salespeople should be assigned to each area next week to maximize profits.
A random sample of 95 printers discovered that 20 of them were being used in small businesses. Find the 95% limit for the population proportion of printers that are used in small businesses.
A firm will promote two employees out of a group of six men and three women. List the chances of this experiment if there is particular concern about gender equity.
Scores on an examination are assumed to be normally distributed with a mean of 58 and a standard deviation of 18. What is the probability that a person taking the examination scores higher than 72?