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A single teller serves the customers in a bank during the afternoon hours of 2 to 3 pm. The teller can serve a customer in an average of four minutes. Suppose that the arrival rates of customers are 10 customers per hour.
a. Find the operating characteristics of the single teller queuing system.
b. If the arrival rate of the customers goes up in the future, how high should the average arrival rate be before a second teller is added?
Find the mean and the standard deviation of the number of correct answers.
The old operation to restore hearing is known to be 30%sucessful. A new operation that restores hearing is being researched. It is known that 88 out of 225 operations using this new method have been successful. Can we justify the claim that the new m..
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What is the Expected Value of Perfect Information in this scenario?
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the blood pressure measurements of a single patient were taken by twelve different medical student and the results are
Find the sampling distribution of the sample mean x‾.- Find the sampling distribution of the total length for all three catfish, T.
question a pharmaceutical company manufactures large batches of analgesic caplets which are designated to contain 200
Estimate the value of torque required when the diameter is 16 mm. Calculate the coefficient of correlation between these variables and comment on your prediction obtained in (c).
Determine the approximate values for the median, the first and third quartiles, and the range. Does the distribution appear to be skewed? If so, is it positively skewed or negatively skewed?
Let's suppose that we have 2 variables year and age.. I use STATA to make them into dummy variables as follows:
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