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1.A study of the multiple server food service operation at the Red Birds baseball park shows that the average time between the arrival of a customer at the food service counter and his or her departure with a filled order is 10 minutes. During the game, customers arrive at the rate of four per minute. The food service operation requires an average of 2 minutes per customer order.
a. What is the service rate per server in terms of customers per minute?b. What is the average waiting time in the line prior to placing an order?c. On average, how many customers are in the food service system?
Chi-square test for goodness of fit - difference in the use of the four entrances?
1. a study of commuting times reports the travel times to work of a random sample of 17 employed adults in new york
if 3 different factor levels show a lot of variation between levels this impliesa a large amount of error within each
the inside diameter of a cylinder has specifications 1 - .03 cm. the machining process output follows a normal
a company believes it has a 40 chance of being successful on bidding a contract that yields a profit of 30000. assume
A sample of 40 observations is selected from one somewhat normal population. The sample mean is 102 and the sample standard deviation is 5.
suppose you are told that a 95 confidence interval for the average price of a gallon of regular gasoline in your state
an amusement park studied methods for decreasing the waiting time minutes for rides by loading and unloading riders
test scores on a university admissions test are normally distributed with a mean of 500 and a standard deviation of
The following frequency distribution shows the time (in minutes) that a sample of students uses the computer terminals per day. Compute the coefficient of variation.
One of the points is suspected of being a bivariate outlier. When this point is removed, the new correlation is r = -.833. Is this point likely to be a bivariate outlier?
a production process is set to manufacture bolts with a diameter of .5 inches. the process has a standard deviation of
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