1.
Which of the following is a characteristic of demand?
Correct Answer
B. Seasonal variation
Explanation
Seasonal variation refers to the fluctuation in demand that occurs due to seasonal factors such as holidays, weather conditions, or cultural events. It represents the regular pattern of increase or decrease in demand over a specific period of time. This characteristic is important for businesses to understand and anticipate in order to effectively manage their inventory, production, and pricing strategies. By recognizing and adjusting for seasonal variation, companies can optimize their operations and meet customer demand more efficiently.
2.
Product A is made from components B and C. Component B is made from parts D and E. Which items should be forecast?
Correct Answer
A. Only A
Explanation
The correct answer is Only A. Since Product A is made from components B and C, forecasting only Product A is sufficient. Components B and C are not directly sold to customers, so there is no need to forecast them separately. Additionally, since Component B is made from parts D and E, forecasting D and E is not necessary as they are not directly used in the final product.
3.
Which of the following is the best statement about the general principles of forecasting?
Correct Answer
C. Every forecast should include an estimate of error
Explanation
Including an estimate of error in every forecast is the best statement about the general principles of forecasting. This is because forecasting is inherently uncertain and involves making predictions based on available data and assumptions. By including an estimate of error, it acknowledges the potential margin of error or uncertainty in the forecast. This helps decision-makers understand the level of confidence they can have in the forecast and make more informed decisions based on the range of possible outcomes.
4.
What important assumption is made about statistical (quantitative) forecasting methods?
Correct Answer
A. The past is a valid indicator of the future
Explanation
Statistical forecasting methods assume that the past data can accurately predict future outcomes. This assumption is based on the belief that historical patterns and trends will continue to exist in the future. By analyzing past data, statistical models can identify patterns and relationships that can be used to forecast future demand or trends. However, it is important to note that this assumption may not always hold true, especially in situations where there are significant changes or disruptions in the market or industry.
5.
Which forecasting technique takes the average demand for some past number of periods?
Correct Answer
B. Moving average
Explanation
Moving average is a forecasting technique that calculates the average demand for a specific number of past periods. It is commonly used to smooth out fluctuations and identify trends in data. By taking the average, it provides a more stable and reliable estimate of future demand. This technique is particularly useful when there is a consistent pattern or seasonality in the data.
6.
Why is it important to monitor the forecast?
Correct Answer
B. To improve our forecasting methods
Explanation
Monitoring the forecast is important because it allows us to compare the actual sales with the forecast. By doing so, we can identify any discrepancies or variations between the two, which helps us understand the accuracy and reliability of our forecasting methods. This information is crucial in improving our forecasting techniques and making necessary adjustments to ensure more accurate predictions in the future. Additionally, monitoring the forecast also enables us to utilize actual sales data, which can provide valuable insights and inform decision-making processes.
7.
Which of the following stateents is most accurate?
Correct Answer
B. The season index is an estimate of how much the demand during the season will be above or below the average demand
Explanation
The season index is an estimate of how much the demand during the season will be above or below the average demand. This means that it provides a measure of the fluctuation in demand during specific seasons compared to the overall average demand. It helps in understanding the patterns and variations in demand that occur during different seasons of the year.
8.
Which of the following causes forecast error?
Correct Answer
A. Random variation from average demand
Explanation
Random variation from average demand can cause forecast error because it refers to the unpredictable fluctuations in demand that deviate from the average. These variations can occur due to various factors such as seasonality, market trends, customer behavior, or external events. When forecasters fail to accurately predict these random variations, it leads to errors in the forecasted demand, resulting in forecast error.
9.
Which of the following statements is most accurate?
Correct Answer
A. Independent demand items should be forecast
Explanation
Independent demand items refer to items that are directly demanded by customers, as opposed to dependent demand items that are components of finished products. Forecasting is necessary for independent demand items because their demand cannot be directly determined. This statement is accurate because forecasting helps in estimating the demand for independent demand items, which in turn helps in planning production, inventory, and supply chain activities.
10.
Which of the following statements is most accurate?
Correct Answer
D. The circumstances relating to demand data should be recorded
Explanation
To accurately forecast demand, it is important to record the circumstances relating to demand data. This means taking into account factors such as seasonality, market trends, customer preferences, and any other relevant information that could impact future demand. By recording these circumstances, manufacturers can make more informed decisions and create more accurate forecasts. Simply relying on past sales or making forecasts in dollars for total sales may not take into account the specific factors that influence demand, leading to less accurate predictions.