Question Tag: Time Series Analysis

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QMDM – APR 2024 – L2 – Q4 – Exponential Smoothing in Time Series Forecasting for Mango Demand

Using monthly demand data for mangos over 15 months, explain exponential smoothing, compute and compare forecasts using alpha=0.1 and 0.4 with initial forecast of 500, describe plots of actual vs forecasts, and comment on suitability.

Kiki, the commercial mango seller has collected demand figures for mangos over the last 15 months in the table below:

Month Demand
1 470
2 510
3 460
4 490
5 520
6 460
7 1500
8 1450
9 1550
10 1500
11 1480
12 1520
13 1500
14 1490
15 1500

(a) Explain briefly the term “Exponential Smoothing” in Time Series Analysis of the data above. [3 Marks]
(b) Use an initial forecast of 500 to compare Exponential Smoothing Forecasts with Smoothing Constant Values a = 0.1 and a=0.4.
(c) Plot the actual values of the time series and superimpose the forecast for the Smoothing Constant Values a= 0.1 and a=0.4 on the graph of the actual values.
(d) Comment on the suitability of the forecast from the Smoothing Constant Values a= 0.1 and a=0.4.

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PM – Nov 2024 – L2 – Q3 – Budgeting and Budgetary Control

Outline key stages in linking long-term objectives to budgetary control, and explain different budgeting types and forecasting methods.

You are the management accountant of a large manufacturing company in Kaduna. A management retreat has been planned for next week to set the agenda for the preparation for next year’s budget.

Required:

a. Outline the key stages in the planning process that link long-term objectives and budgetary control. (8 Marks)

b. Explain the meaning of the terms ‘fixed budget’, ‘rolling budget’, and ‘zero-based budget’, and discuss the circumstances under which each budget might be used. (8 Marks)

c. Discuss whether time series analysis may be preferred to linear regression as a way of forecasting sales volume. (4 Marks)

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QTB – MAY 2016 – L1 – SA – Q15 – Statistics

Identify the graph used to plot a Time Series

The plot of a Time Series as a graph is called

A. Histogram
B. Ogive
C. Pie chart
D. Historigram
E. Z-chart

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QMDM – APR 2024 – L2 – Q4 – Exponential Smoothing in Time Series Forecasting for Mango Demand

Using monthly demand data for mangos over 15 months, explain exponential smoothing, compute and compare forecasts using alpha=0.1 and 0.4 with initial forecast of 500, describe plots of actual vs forecasts, and comment on suitability.

Kiki, the commercial mango seller has collected demand figures for mangos over the last 15 months in the table below:

Month Demand
1 470
2 510
3 460
4 490
5 520
6 460
7 1500
8 1450
9 1550
10 1500
11 1480
12 1520
13 1500
14 1490
15 1500

(a) Explain briefly the term “Exponential Smoothing” in Time Series Analysis of the data above. [3 Marks]
(b) Use an initial forecast of 500 to compare Exponential Smoothing Forecasts with Smoothing Constant Values a = 0.1 and a=0.4.
(c) Plot the actual values of the time series and superimpose the forecast for the Smoothing Constant Values a= 0.1 and a=0.4 on the graph of the actual values.
(d) Comment on the suitability of the forecast from the Smoothing Constant Values a= 0.1 and a=0.4.

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PM – Nov 2024 – L2 – Q3 – Budgeting and Budgetary Control

Outline key stages in linking long-term objectives to budgetary control, and explain different budgeting types and forecasting methods.

You are the management accountant of a large manufacturing company in Kaduna. A management retreat has been planned for next week to set the agenda for the preparation for next year’s budget.

Required:

a. Outline the key stages in the planning process that link long-term objectives and budgetary control. (8 Marks)

b. Explain the meaning of the terms ‘fixed budget’, ‘rolling budget’, and ‘zero-based budget’, and discuss the circumstances under which each budget might be used. (8 Marks)

c. Discuss whether time series analysis may be preferred to linear regression as a way of forecasting sales volume. (4 Marks)

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QTB – MAY 2016 – L1 – SA – Q15 – Statistics

Identify the graph used to plot a Time Series

The plot of a Time Series as a graph is called

A. Histogram
B. Ogive
C. Pie chart
D. Historigram
E. Z-chart

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You're reporting an error for "QTB – MAY 2016 – L1 – SA – Q15 – Statistics"

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