Reference no: EM131075903
11.1. Consider a typical hospital emergency room.
a. Describe why it is a queueing system.
b. What is the queue in this case? Describe how you would expect the queue discipline to operate.
c. Would you expect random arrivals?
d. What are service times in this context? Would you expect much variability in the service times?
Question 12.1)The symbols to the left of some of the problems (or their parts) have the following meaning:
E*: Use Excel.
Q*: Use the Queueing Simulator.
An asterisk on the problem number indicates that at least a partial answer is given in the back of the book.
12.1.* Use the random numbers in cells C13:C18 of Figure 12.1 to generate six random observations for each of the following situations.
a. Throwing an unbiased coin.
b. A baseball pitcher who throws a strike 60 percent of the time and a ball 40 percent of the time.
c. The color of a traffic light found by a randomly arriving car when it is green 40 percent of the time, yellow 10 percent of the time, and red 50 percent of the time.
Below is the answer on the back of the book
12.1. b. Let the numbers 0.0000 to 0.5999 correspond to strikes and the numbers 0.6000 to 0.9999 correspond to balls. The random observations for pitches are 0.3039 = strike, 0.7914 = ball, 0.8543 = ball, 0.6902 = ball, 0.3004 = strike, 0.0383 = strike.
12.1) Figure
The Probability Distribution of Breakdowns for Heavy Duty's Motors, and the Corresponding Random Numbers Corresponding Random Numbers
Day Probability of a Breakdown Corresponding Random #
1,2,3 0
4 0.25 0.0000 to 0.2499
5 0.5 0.2500 to 0.7499
6 0.25 .7500 to 0.9999
7or more 0
12.7. Generate three random observations from the uniform distribution between - 10 and 40 by using the following random numbers: 0.0965, 0.5692, 0.6658.
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Which has the greater power density, the cell or the battery
: Which has the greater power density, the cell or the battery?
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Information between marketing and sales and accounting
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What is the net present value of the machine
: What is the net present value of the machine? Which methods of evaluating a capital investment project ignore the time value of money?
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Total cost of the units including initial charge
: Romeo buys unit trusts and invests for income. He invested £50,000 in a unit trust with an offer price of £125 per unit, and sold the units after 5 years at £162 per unit. During this period he received income from the units of £6,200. This income..
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An asterisk on the problem number indicates
: 1. Griffin Inc. is expected to double sales from $500,000 to $1,000,000 next year. Net assets (assets -liabilities) will remain constant at 50% of sales and 9% return on total sales. They have $100,000 in the bank (cash) and seem to have a very o..
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Probability that a randomly selected game
: What is the probability that a randomly selected game will last between 120 and 210 minutes?
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External transaction costs
: How does a firm decide when to produce internally or incur external transaction costs? Describe a situation for both, and be sure to include costs and advantages for each.
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Construct a table that summarizes your swot analysis
: Construct a table that summarizes your SWOT analysis with an accompanying reference page listing any external resources used in your analysis. Comparisons should include quantitative/evidence-based information as well as qualitative
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Calculate the average returns and standard deviations
: Year X Y 1 21.7% 26.1% 2 -16.7% -3.7 % 3 9.7% 28.1% 4 19.4% -14.4% 5 4.7 % 32.1% Requirement 1: Calculate the average returns for X and Y. Calculate the variances for X and Y. Calculate the standard deviations for X and Y.
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