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The solution to Queuing Analysis
The Bay City Police Department has eight patrol cars that are on constant call 24 hours a day. A patrol car requires repairs every 20 days, on average, according to an exponential distribution. When a patrol car is in need of repair, it is driven into the motor pool, which has a repair person on duty at all times. The average time required to repair a patrol car is 18 hours (exponentially distributed). Determine the average time a patrol car is not available for use and the average number of patrol cars out of service at any one time. Indicate whether the repair service seems adequate
Among 250 latex gloves, 7 percent leaked viruses. Using 95 percent confidence interval tests a claim that Viny gloves have a larger virus leak rate than latex gloves. Basically you need to answer the following questions.
The following random sample was selected from a normal distribution: 10, 12, 12, 15, 13, 15 & 16.Test the hypothesis that the true mean exceeds 12. [Use α =.01]
Find the range of angles that trace out the full graph and determine and graph the equations of the tangent lines at each relative maximum of r
Calculate an exponentially smoothed forecast, using an alpha value of .30.
Probability of a Bullseye, A simple dartboard has three areas - the main board has a radius of 10 inches, there is a circle with a radius of 5 inches, and the bullseye has a radius of 2 inches
Joint frequency table which summarizes voting trends in the most recent Presidential election, Suppose a deck of 10 cards each with a different digit from 0-9 are shuffled and a card from the top of the deck is drawn.
Graph of a certain function is given. Using the information of transformation given in equation, determine the coordinate of a new point
Take 4900 draws from this distribution. Graph the histogram & give the mean and variance of this sample. (Hand in only the histogram and the results for mean and variance).
Find the equation of the line drawn between two points - Write the equation of the line with slop -2 and passing through the point (4, -3).
Use the mathematical and graphical analyses to determine the equation of the above function if the parabola cross the line y=2x at two points with the x-coordinates 0 and 10. Hint: there is more than one solution.
Find the best unbiased point estimate for the population mean weight of the packages received by the parcel service.
what is the probability that all will make a purchase and evaluate the probability that a light bulb will burn out in less than 1000 hours.
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