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Question: A local bank has a single drive-through window with arrival times and service times that follow the distributions from the following table:
Simulate the arrival of 200 customers to compute each of the following measures:
(a) average time a customer waits for service,
(b) average time a customer is in the system (wait plus service time), and
(c) percentage of time the server is busy with customers. Replicate each measure N times to compute the average.
Design a contingency table that will hold your data. What are your degrees of freedom and critical value at a 0.05 confidence level? You do not need data to answer this.
Is it proper to apply the one-sample t method to these data to give a 95% confidence interval for the average expenditure per pupil? Explain your answer.
What is the probability that the second card is a queen? If three cards are drawn, what is the probability that the third is a queen?
State the critical (tabled) value of t that would be used to reject the null hypothesis of equality of population means, for an independent groups t-test
Alice and Bob have just met, and wonder whether they have a mutual friend. Each has 50 friends, out of 1000 other people who live in their town.
List the sample space in S and determine the number simple events. What is the probability that the sum of the numbers shown on the upper faces is equal to 7?
Given the following raw scores, calculate the following values: Range, Variance and Standard Deviation, show your calculations: Scores: 9, 7, 8, 4, 8, 8,7, 8, 9, 6, 3
In the linear programming formulation of the transportation problem, cost of transporting one unit of the material from a supply point to a demand point appears in
The researcher in exercise decides to conduct the same study using a within - participates design to control for differences in cognitive ability.
Crystal Ball requires the following steps:
Researchers from Yale, working with medical teams in Tanzania, wanted to know how common infection with the AIDS virus is among pregnant women
an educator claims that the drop out rate for seniors at high school in ohio is 15. last year 38 seniors from a random
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