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The post office uses a multiple channel queue, where customers wait in a single line for the first available window. If the average service time is 1 minute and the arrival rate is 7 customers every five minutes, find, when two service windows are open, (Use Management Scientist, Make sure that l and m are in the same units).
a. the probability both windows are idle.
b. the probability a customer will have to wait.
c. the average time a customer is in line.
d. the average time a customer is in the post office.
Joe received a z score of -1.50 on a classroom test. This means that, compared to his classmates, Joe's score was...?
Prepare a list of at least three job-related assets that you have and explain why and how these qualities would be useful to a potential employer.
two diseases a and b are spread in a certain population. it is known that 10 of the persons in this population will
What is meant by an independent sample? What is a related sample? When should researchers use different hypothesis tests for independent and related samples?
Use these data to test the hypothesis that the median salary of financial accountants in 2007 was not greater than in 2004. What is the p-value?
a manufacturer wants to increase the absorption capacity of a sponge. based on past data the average sponge could
Construct a 99% confidence interval estimate for the population mean weight of the tea bags. Is the company meeting the requirement set fourth on the label that the mean of tea in a bag is 5.5 grams?
in an analysis of variance summary table if the mean square between 43 and the mean square within23 then the null
Below are five (5) separate distributions. a. Calculate the Range b. Use the range to calculate the standard deviation c. Calculate the standard deviation (and show any difference)
Discuss some of the major differences between GASB and FASB when it comes to setting accounting standards. Why are there major differences between governmental accounting systems vs. business accounting systems?
Which would you use as the point estimate for the average number of days absent for all the firm's employees - What null and alternative hypotheses would be appropriate in evaluating this statement made by the commissioner?
twenty percent of all telephones of a certain type are submitted for service while under warranty. of these 60 can be
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