Course  Operations Management16SP 
Test  Quiz 4 
Started  2/18/16 11:27 PM 
Submitted  2/18/16 11:48 PM 
Status  Completed 
Attempt Score  100 out of 100 points 
Time Elapsed  20 minutes. 
Instructions 
 Question 1
5 out of 5 points
Suppose that the last four months of sales were 8, 10, 15, and 9 units, respectively. Suppose further that the last four forecasts were 5, 6, 11, and 12 units, respectively. What is the Mean Absolute Deviation (MAD) of these forecasts?
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 Question 2
5 out of 5 points
If Brandon Edward were working to develop a forecast using a moving averages approach, but he noticed a detectable trend in the historical data, he should:
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 Question 3
5 out of 5 points
As compared to longrange forecasts, shortrange forecasts:
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 Question 4
5 out of 5 points
A forecast with a time horizon of about 3 months to 3 years is typically called a:
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 Question 5
5 out of 5 points
The fundamental difference between cycles and seasonality is the:
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 Question 6
5 out of 5 points
A forecast based on the previous forecast plus a percentage of the forecast error is a(n):
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 Question 7
5 out of 5 points
In time series, which of the following cannot be predicted?
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 Question 8
5 out of 5 points
Which of the following most requires longrange forecasting (as opposed to shortrange or mediumrange forecasting) for its planning purposes?
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 Question 9
5 out of 5 points
The three major types of forecasts used by organizations in planning future operations are:
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 Question 10
5 out of 5 points
Suppose that the demand in period 1 was 7 units and the demand in period 2 was 9 units. Assume that the forecast for period 1 was for 5 units. If the firm uses exponential smoothing with an alpha value of .20, what should be the forecast for period 3? (Round answers to two decimal places.)
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 Question 11
5 out of 5 points
Given an actual demand this period of 103, a forecast value for this period of 99, and an alpha of .4, what is the exponential smoothing forecast for next period?
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 Question 12
5 out of 5 points
Given forecast errors of 1, 4, 8, and 3, what is the mean absolute deviation?
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 Question 13
5 out of 5 points
What two numbers are contained in the daily report to the CEO of Walt Disney Parks & Resorts regarding the six Orlando parks?
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 Question 14
5 out of 5 points
The two general approaches to forecasting are:
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 Question 15
5 out of 5 points
Which of the following uses three types of participants: decision makers, staff personnel, and respondents?
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 Question 16
5 out of 5 points
The forecasting technique that pools the opinions of a group of experts or managers is known as:
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 Question 17
5 out of 5 points
A sixmonth moving average forecast is generally better than a threemonth moving average forecast if demand:
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 Question 18
5 out of 5 points
Given an actual demand this period of 61, a forecast for this period of 58, and an alpha of 0.3, what would the forecast for the next period be using exponential smoothing?
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 Question 19
5 out of 5 points
What forecasting systems combine the intelligence of multiple supply chain partners?
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 Question 20
5 out of 5 points
For a given product demand, the timeseries trend equation is 53 – 4x. The negative sign on the slope of the equation:
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