Q4.A. Consider the following manual simulation of machine breakdowns and repair.图Time betweenbreakdowns,Repair time,CostBreakdownsx (weeks)(S2,000 y)$2000$4000y (days)45.72.321.5.5$40002.5$20005.22.$40006.5.82$4000$20007.1.68.2.3$4000123.39.$400010$4000What operating characteristics can be obtained from this simulation?Answer:222

To obtain operating characteristics from simulation, we perform regression analysis

Answered: Q4.A. Consider the following manyal…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Describe the patterns in quantity sold and own and rival prices during this time period using basic descriptive statistics. Graphs are welcome as well. Take the logs of the variables, and estimate the demand function. Interpret the R-square. Interpret the coefficients for logP and logPsub Interpret the p-values associated with each independent variable Are consumers price sensitive? Why or why not? (be as precise as you can – you have estimates!). Does this price sensitivity make sense given the good we are examining? How sensitive are our consumers to changes in the rival good’s price? Explain in detail. Suppose we decide to charge a per ounce price of $2, while at the same time our rival charges a price of $2.15. All else equal, what would you expect sales to be? How confident are you in your forecast? Suppose we are charging a price of $2 and our current marginal cost is $1.50 Are we maximizing profits at this price? If not, should we raise or lower price? Why?
Depart only and
The idea of a large, stable middle class (defined as those with annual household incomes in 2010 between $42,000 and $126,000 for a family of three), is central to America's sense of itself. But the U.S. middle class shrank steadily from 61% of all adults in 1971 (t = 0) to 51% in 2011 (t = 4), where t is measured in decades. Research has shown that this decline was approximately linear.† (a) Find a linear function f(t) giving the percentage of middle-income adults in decade t, where t = 0 corresponds to 1971. (b) If this trend continues, what will the percentage of middle-income adults be in 2041?
The table below contains some revenue and cost data for the Rising Moon T-shirt Company (quantities for packets of a dozen shirts), which is in long-term equilibrium.a. Complete the blanks in the following table. Round your answers in the "AC" column to 2 decimal places. Quantity Price TR MR TC MC AC 0 / $/ / $121 / / 1 63 153 2 122 182 3 177 213 4 228 246 5 275 281 6 318 318 7 357 357 8 392 398 b. What is the profit-maximizing price and output for Rising Moon? Price: $ Output: c. At the profit-maximizing output, what are MC and MR? MC: $ MR: $ d. At the profit-maximizing output, what are AC and AR? Round your AC answer to 2 decimal places. AC: $ AR: $ e. Given your answers above, what type of market must Rising Moon be operating in? Rising Moon must be operating in a
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The problem is based on the following data given. Observations of the demand for a certain part stocked at a parts supply depot during the calendar year 2013 were ( as shown ). What would an MA(1) forecasting method mean? Compare the accuracy of MA(1) and MA(4) forecasts for July through December 2013.
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a and b
12. Is the data x representative of a linear, quadratic, or exponential model? x -3 -2 -1 0 -18 -6 -2 0 y O 1 2 2 3 6 18 linear quadratic exponential -3 -2 -2 -1 -1 0 1 y 18 -6 -2 0 2 * 1 2 6 × 18
#8
22. Operating Expenses: Amazon The following table shows Amazon's approximate net sales (revenue) and operating expenses in 2011-2014:69 26. Net Sales ($ billion) 50 60 70 80 Operating Expenses ($ billion) 11 16 23 25 a. Use this information to find a linear regression model for Amazon's operating expenses E (in billions of dol- lars) as a function of net sales S (in billions of dollars). Plot the data and regression line. b. Give the units of measurement and interpretation of the slope. c. What, according to the model, would Amazon need to earn in net sales for its operating expenses to be $5 bil- lion? (Round answer to the nearest billion dollars.) d. Based on the graph, would you say that the linear model is reasonable? Why or why not? 27.

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