Time Series Forecasting Questionnaire

QUESTION 1

1. Jessica needs to display a time series data over time. Which of the following charts should he use?
   A.Scatter chart
2. B.Pie chart
3. C.Line chart
4. D.Bar chart

QUESTION 2

1. A company’s sales data are listed as follows:YearSales1252133224315196137168109281022What is the forecast for year 11 by using the naive approach?
   A.10
2. B.28
3. C.25
4. D.22

QUESTION 3

1. A company’s sales data are listed as follows:YearSales1252133224315196137168109281022
   what is the forecast of year 11 by using a 3 year moving average?
   A.22
2. B.25
3. C.19
4. D.20

QUESTION 4

1. A company’s sales data are listed as follows:YearSales1252133224315196137168109281022
   what is the forecast of year 11 by using a exponential smoothing with smoothing constant 0.2?
   A.24.63
2. B.20.45
3. C.20.06
4. D.24.1

QUESTION 5

1. A company’s sales data are listed as follows:YearSales1252133224315196137168109281022
   What is the MAPE for the exponential smoothing with alpha=0.4?
2. A.0.43
3. B.69.55
4. C.0.42
5. D.7.