Question 1

Explain the simple moving average method used in forecasting.

Accepted Answer

The simple moving average method is a sm

Question 2

Use the data given below to answer the following question(s).
The sales details of a particular game are shown below.The value of k is set at 3.  
-For the given data,what is the value of the mean square error?

Accepted Answer

A) 600.33 
B) 24.50 
C) 21.67 
D) 18.57 
A) 600.33 
B) 24.50 
C) 21.67 
D) 18.57

Question 3

If St - s + k is the seasonal factor for period t - s + k and s is the number of periods in a season,the seasonal additive model can be written as ________.

Accepted Answer

A) Ft + k = at + St - s + k 
B) Ft = at + St - s + k 
C) Ft = at + k + St - s + k 
D) Ft + k = (at + k)+ St - s + k 
A) Ft + k = at + St - s + k 
B) Ft = at + St - s + k 
C) Ft = at + k + St - s + k 
D) Ft + k = (at + k)+ St - s + k

Question 4

In the double forecasting model Ft + k = at + btk,Ft + k denotes the level in the model.

Accepted Answer

A) True 
 B)False

Question 5

If the given time series exhibits seasonality but no trend,the ________ is the most appropriate forecasting model to determine the forecast of the time series.

Accepted Answer

A) single moving average model 
B) seasonal multiplicative model 
C) double exponential smoothing model 
D) Holt-Winters additive model 
A) single moving average model 
B) seasonal multiplicative model 
C) double exponential smoothing model 
D) Holt-Winters additive model

Question 6

Use the data given below to answer the following question(s).
The sales details of a particular game are shown below.The value of k is set at 3.  
-For the given data,the value of the mean absolute percentage error is ________.

Accepted Answer

A) 600.33 
B) 24.50 
C) 18.57 
D) 21.67 
A) 600.33 
B) 24.50 
C) 18.57 
D) 21.67

Question 7

Use the data given below to answer the following question(s).
The table below shows the car sales from the year 2002-2007.The forecaster assumes a smoothing constant of 0.8 and uses the exponential smoothing model to determine the forecast for the future.  
-In the double exponential smoothing model Ft+k = at + btk,identify the value that signifies the trend.

Accepted Answer

A) at 
B) Ft+k 
C) k 
D) bt 
A) at 
B) Ft+k 
C) k 
D) bt

Question 8

Use the data given below to answer the following question(s).
The table below shows the car sales from the year 2002-2007.The forecaster assumes a smoothing constant of 0.8 and uses the exponential smoothing model to determine the forecast for the future.  
-Using the given data,determine the value of the root mean square error.

Accepted Answer

A) 225.98 
B) 10.28 
C) 15.03 
D) 25.27 
A) 225.98 
B) 10.28 
C) 15.03 
D) 25.27

Question 9

A(n)________ is a stream of historical data.

Accepted Answer

A) index 
B) time series 
C) irrational number 
D) orthopole 
A) index 
B) time series 
C) irrational number 
D) orthopole

Question 10

Use the data shown below to answer the following question(s).
The table below shows the sales details of a kind of vegetable sold at a department store for each week.  
-For the given data,the value of the mean square error is ________.

Accepted Answer

A) 2,444,136.45 
B) 1,563.37 
C) 1,341.46 
D) 14.78 
A) 2,444,136.45 
B) 1,563.37 
C) 1,341.46 
D) 14.78

Question 11

Use the data given below to answer the following question(s).
The table below shows the car sales from the year 2002-2007.The forecaster assumes a smoothing constant of 0.8 and uses the exponential smoothing model to determine the forecast for the future.  
-For the given data,the value of the mean square error is ________.

Accepted Answer

A) 225.98 
B) 10.28 
C) 15.03 
D) 25.27 
A) 225.98 
B) 10.28 
C) 15.03 
D) 25.27

Question 12

Use the data given below to answer the following question(s).
The table below shows the car sales from the year 2002-2007.The forecaster assumes a smoothing constant of 0.8 and uses the exponential smoothing model to determine the forecast for the future.  
-From the data given above,what is the forecast-in 000s-for the year 2003?

Accepted Answer

A) 41 units 
B) 33 units 
C) 66 units 
D) 49 units 
A) 41 units 
B) 33 units 
C) 66 units 
D) 49 units

Question 13

What is an autoregressive forecasting model?

Accepted Answer

An autoregressive forecasting model inco

Question 14

Holt-Winters' forecasting models are examples of qualitative and judgmental forecasting methods.

Accepted Answer

A) True 
 B)False

Question 15

Briefly describe the method of historical analogy used in forecasting.

Accepted Answer

In historical analogy,a forecast is obta

Question 16

Use the data given below to answer the following question(s).
The table below shows the car sales from the year 2002-2007.The forecaster assumes a smoothing constant of 0.8 and uses the exponential smoothing model to determine the forecast for the future.  
-In the double exponential smoothing model Ft+k = at + btk,identify the value that signifies the slope.

Accepted Answer

A) at 
B) Ft+k 
C) bt 
D) k 
A) at 
B) Ft+k 
C) bt 
D) k

Question 17

Use the data shown below to answer the following question(s).
The table below is the data set of the Shiller Real Home Price Index for the years 1985-2000.  
-Setting k = 3,determine the value of the mean square of errors.

Accepted Answer

@#IMG-DLM& MSE = @#IMG-DLM& = @#IMG-DLM& = 52.70 T

Question 18

Use the data given below to answer the following question(s).
The table below shows the industrial lathe sales from the years 2000-2005.The forecaster uses the regression method to determine the forecast for the future.  
-For the data given above,calculate the forecast value for the year 2006.

Accepted Answer

A) approximately 5,699 units 
B) approximately 5,322 units 
C) approximately 4,945 units 
D) approximately 6,453 units 
A) approximately 5,699 units 
B) approximately 5,322 units 
C) approximately 4,945 units 
D) approximately 6,453 units

Question 19

Use the data given below to answer the following question(s).
The sales details of a particular game are shown below.The value of k is set at 3.  
-For the data given above,the forecast for week 7 is ________.

Accepted Answer

A) 112 units 
B) 211 units 
C) 121 units 
D) 82 units 
A) 112 units 
B) 211 units 
C) 121 units 
D) 82 units

Question 20

Use the data shown below to answer the following question(s).
The table below is the data set of the Shiller Real Home Price Index for the years 1985-2000.  
-Setting k = 3,determine the simple moving average forecast for the year 2001.

Accepted Answer

Year 2001 forecast =

Explain the simple moving average method used in forecasting.

Use the data given below to answer the following question(s). The sales details of a particular game are shown below.The value of k is set at 3. -For the given data,what is the value of the mean square error?

If S_t_-_s₊_k is the seasonal factor for period t - s + k and s is the number of periods in a season,the seasonal additive model can be written as ________.

In the double forecasting model F_t₊_k = a_t + b_tk,F_t₊_k denotes the level in the model.

If the given time series exhibits seasonality but no trend,the ________ is the most appropriate forecasting model to determine the forecast of the time series.

Use the data given below to answer the following question(s). The sales details of a particular game are shown below.The value of k is set at 3. -For the given data,the value of the mean absolute percentage error is ________.

A(n)________ is a stream of historical data.

Use the data shown below to answer the following question(s). The table below shows the sales details of a kind of vegetable sold at a department store for each week. -For the given data,the value of the mean square error is ________.

What is an autoregressive forecasting model?

Holt-Winters' forecasting models are examples of qualitative and judgmental forecasting methods.

Briefly describe the method of historical analogy used in forecasting.

Use the data shown below to answer the following question(s). The table below is the data set of the Shiller Real Home Price Index for the years 1985-2000. -Setting k = 3,determine the value of the mean square of errors.

Use the data given below to answer the following question(s). The table below shows the industrial lathe sales from the years 2000-2005.The forecaster uses the regression method to determine the forecast for the future. -For the data given above,calculate the forecast value for the year 2006.

Use the data given below to answer the following question(s). The sales details of a particular game are shown below.The value of k is set at 3. -For the data given above,the forecast for week 7 is ________.

Use the data shown below to answer the following question(s). The table below is the data set of the Shiller Real Home Price Index for the years 1985-2000. -Setting k = 3,determine the simple moving average forecast for the year 2001.

Data and Business Decisions

Descriptive Statistics and Data Analysis

Probability Concepts and Distributions

Sampling and Estimation

Hypothesis Testing and Statistical Inference

Regression Analysis

Introduction to Statistical Quality Control

Building and Using Decision Models

Decision Models With Uncertainty and Risk

Decisions, uncertainty, and Risk

Queues and Process Simulation Modeling

Linear Optimization

Integer, nonlinear, and Advanced Optimization Methods

Filters

Exam 7: Forecasting

Explain the simple moving average method used in forecasting.

Use the data given below to answer the following question(s). The sales details of a particular game are shown below.The value of k is set at 3. -For the given data,what is the value of the mean square error?

If St - s + k is the seasonal factor for period t - s + k and s is the number of periods in a season,the seasonal additive model can be written as ________.

In the double forecasting model Ft + k = at + btk,Ft + k denotes the level in the model.

If the given time series exhibits seasonality but no trend,the ________ is the most appropriate forecasting model to determine the forecast of the time series.

Use the data given below to answer the following question(s). The sales details of a particular game are shown below.The value of k is set at 3. -For the given data,the value of the mean absolute percentage error is ________.

A(n)________ is a stream of historical data.

Use the data shown below to answer the following question(s). The table below shows the sales details of a kind of vegetable sold at a department store for each week. -For the given data,the value of the mean square error is ________.

What is an autoregressive forecasting model?

Holt-Winters' forecasting models are examples of qualitative and judgmental forecasting methods.

Briefly describe the method of historical analogy used in forecasting.

Use the data shown below to answer the following question(s). The table below is the data set of the Shiller Real Home Price Index for the years 1985-2000. -Setting k = 3,determine the value of the mean square of errors.

Use the data given below to answer the following question(s). The table below shows the industrial lathe sales from the years 2000-2005.The forecaster uses the regression method to determine the forecast for the future. -For the data given above,calculate the forecast value for the year 2006.

Use the data given below to answer the following question(s). The sales details of a particular game are shown below.The value of k is set at 3. -For the data given above,the forecast for week 7 is ________.

Use the data shown below to answer the following question(s). The table below is the data set of the Shiller Real Home Price Index for the years 1985-2000. -Setting k = 3,determine the simple moving average forecast for the year 2001.

Data and Business Decisions

Descriptive Statistics and Data Analysis

Probability Concepts and Distributions

Sampling and Estimation

Hypothesis Testing and Statistical Inference

Regression Analysis

Introduction to Statistical Quality Control

Building and Using Decision Models

Decision Models With Uncertainty and Risk

Decisions, uncertainty, and Risk

Queues and Process Simulation Modeling

Linear Optimization

Integer, nonlinear, and Advanced Optimization Methods

Filters

If S_t_-_s₊_k is the seasonal factor for period t - s + k and s is the number of periods in a season,the seasonal additive model can be written as ________.

In the double forecasting model F_t₊_k = a_t + b_tk,F_t₊_k denotes the level in the model.