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The time between arrivals of cars at the Petroco Service Station is defined by thw following probability distribution.
Time Between Arrivals 9min) Probability
1 .152 .303 .404 .15= 1.00
A. Simulate the arrival of cars at the service station for 20 arrivals, and cmpute the average time between arrivals.
B. Simulate the arrival of cars at the service station for one hour using a different stream of random numbers from those used in (a), and compute the average time between arrivals.
C. Compare the results obtained in (a) and ( b).
A manufacturing process makes items whose weights are normally distributed. It is known that 22.57% of all the items made weigh between 100 grams up to mean and 49.18% weigh from the mean up to 190 grams. Find out the standard deviation.
Plan the scatter diagram
Continuous random variable is uniformly distributed between a and b. The probability density function between a and b is.
Be sure to show whether you use the t- or z- value, and what value you use. Interpret the confidence interval in a single sentence. In another sentence, state why you used either the "t" or the "z".
The mean number of passengers per flight is 160 with a standard deviation of 20. The aircraft used for the route has 200 seats.
What control limits should be applied to his sample?
What is the relationship between the variance and the standard deviation?
Do the data you obtained provide enough evidence to reject the claim? Use a 1% level of significance.
Create a mixed integer programming model for this problem.
To find the necessary sample size to achieve the given level of accuracy of prediction.
Conclude that the population average pulse rate is 71.8. Reject the hypothesis that the population average pulse rate is 70.
In, addition, the company has decided to purchase at least three of the new Econo-Tankers for use on short-run, low-demand routes. As a final constraint, the conpany deos not want more than half the new models to be Super Tankers.
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