## All Weeks Supply Chain Planning Coursera Quiz Answers

### Supply Chain Planning Week 1 Quiz Answers

#### Quiz 1: Naive Forecast Practice Quiz

Q1. Which of the following is the naive forecast formula?

**F_t = D_t-1**- F_t = a*D_t-1 + (1-a)*F_t-1

Q2. How would you describe the naive forecast?

**How would you describe the naive forecast**

Q3. What is the value of the last forecast you can create? (it would be period 31)

**It will be very difficult to describe the naive forecast**

#### Quiz 2: Cumulative Mean Practice Quiz

Q1. How would you describe the cumulative mean method in words?

**It will be very difficult to describe the naive forecast**

Q2. Which one is the formula for the cumulative mean?

**Formula**

Formula

Q3. What is the value (after rounding) of the last forecast you can create? (period 31)

**31-5**

#### Quiz 3: Naive Forecast and Cumulative Mean Assessment

Q1. For Product A, what would you predict in period 31 using the Naive Forecast?

**98**

Q2. For Product B, what would you predict in period 31 using the Naive Forecast?

**97**

Q3. For Product C, what would you predict in period 31 using the Naive Forecast?

**150**

Q4. For Product D, what would you predict in period 31 using the Naive Forecast?

**187**

Q5. For Product E, what would you predict in period 31 using the Naive Forecast?

**202**

Q6. For Product A, what would you predict in period 31 using the Cumulative Mean Forecast?

**100**

Q7. For Product B, what would you predict in period 31 using the Cumulative Mean Forecast?

**99**

Q8. For Product C, what would you predict in period 31 using the Cumulative Mean Forecast?

**156**

Q9. For Product D, what would you predict in period 31 using the Cumulative Mean Forecast?

**180**

Q10. For Product E, what would you predict in period 31 using the Cumulative Mean Forecast?

**202**

### Supply Chain Planning Week 2 Quiz Answers

#### Quiz 1: Forecast Accuracy Practice Quiz

Q1. Why is the mean error important?

**Error important means the error that cant be ignore**

Q2. What is the primary use of the MAPE?

**Mape is used in making algorithms and structures**

Q3. Why is the MSE important? (i.e. why should you use it?)

**It is the backbone of the supply chain**

Q4. In the example shown in the screencast, what is the result of the mean error? (.xx)

**55**

#### Quiz 2: Forecast Accuracy

Q1. What is the mean squared error for the cumulative mean forecast for Product A? (format x.xx, xx.xx or xxx.xx)

**55.5**

Q2. What is the mean absolute percent error for the cumulative mean forecast for Product B? (format x.xx or xx.xx)

**9**

Q3. What is the mean error for the cumulative mean forecast for Product C? (format x.xx or -x.xx)

**7.32**

Q4. What is the mean absolute percent error for the cumulative mean forecast for Product D? (format x.xx or xx.xx)

**5**

Q5. What is the mean error for the cumulative mean forecast for Product E? (format x.xx)

**98**

#### Quiz 3: Moving Average

Q1. For Product A, what would you predict in period 31 using the Moving Average (N=3) Forecast?

**10.7**

Q2. For Product B, what would you predict in period 31 using the Moving Average (N=3) Forecast?

**5.16**

Q3. For Product C, what would you predict in period 31 using the Moving Average (N=3) Forecast?

**2.55**

Q4. For Product D, what would you predict in period 31 using the Moving Average (N=3) Forecast?

**5.24**

Q5. For Product E, what would you predict in period 31 using the Moving Average (N=3) Forecast?

**47.9**

Q7. What is the mean absolute percent error for the moving average forecast (N=3) for Product B? (format x.xx)

**-0.5**

Q8. What is the mean error for the moving average forecast (N=3) for Product C? (format x.xx)

**-0.56**

Q9. What is the mean absolute percent error for the moving average forecast (N=3) for Product D? (format x.xx)

**6.42**

Q10. What is the mean squared error for the moving average forecast (N=3) for Product E? (format x.xx, xx.xx, or xxx.xx)

**197.67**

### Supply Chain Planning Week 3 Quiz Answers

#### Quiz 1: Exponential Smoothing Practice Quiz

Q1. Which of the following formulae represents the exponential smoothing forecast?

**Option 1**

Q2. What does exponential smoothing do?

**It gives the power of that number**

Q3. What does the coefficient alpha do?

**Alpha does not do anything it is just a constant**

Q4. What is the exponential smoothing forecast for period 31? (Alpha = 0.2)

**31*0.2**

#### Quiz 2: Exponential Smoothing Forecast

Q1. For Product A, what would you predict in period 31 using the Exponential Smoothing (alpha = 0.1) Forecast?

**101**

Q2. For Product B, what would you predict in period 31 using the Exponential Smoothing (alpha = 0.2) Forecast?

**97**

Q3. For Product C, what would you predict in period 31 using the Exponential Smoothing (alpha = 0.3) Forecast?

**152**

Q4. For Product D, what would you predict in period 31 using the Exponential Smoothing (alpha = 0.4) Forecast?

**177**

Q5. For Product E, what would you predict in period 31 using the Exponential Smoothing (alpha = 0.5) Forecast?

**208**

Q6. What is the mean absolute percent error for the exponential smoothing forecast (alpha = 0.1) for Product A? (format x.xx)

**0.97**

Q7. What is the mean squared error for the exponential smoothing forecast (alpha = 0.2) for Product B? (format xx.xx)

- –
**1.7**

Q8. What is the mean squared error for the exponential smoothing forecast (alpha = 0.3) for Product C? (format xx.xx)

**22.34**

Q9. What is the mean error for the exponential smoothing forecast (alpha = 0.4) for Product D? (format x.xx)

**182.9**

Q10. What is the mean squared error for the exponential smoothing forecast (alpha = 0.5) for Product E? (format xxx.x)

**-1.1**

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