Question
The following data show the number of Netflix subscribers worldwide for the years(period) to(period) ( datawrapper website). The data are in the file NetflixSubscribers .
The following data show the number of Netflix subscribers worldwide for the years(period) to(period) (datawrapperwebsite). The data are in the fileNetflixSubscribers.
Click on the datafile logo to reference the data.
Year | Period | Subscribers (millions) | |
2012 | 1 | 33.27 | |
2013 | 2 | 44.35 | |
2014 | 3 | 57.39 | |
2015 | 4 | 74.76 | |
2016 | 5 | 93.80 | |
2017 | 6 | 117.58 |
a.Choose the correct time series plot.
A. | |
B. | |
C. |
- Select your answer -Graph AGraph BGraph CItem 1
What type of pattern exists in the data?
- Select your answer -DownwardUpwardItem 2
b.Develop a linear trend equation for this time series (todecimals).
+
c.Develop a quadratic trend equation for this time series (todecimals).
+ +
d.Compare the MSE for each model (todecimals).
Linear model | |
Quadratic model |
Which model appears better according to MSE?
- Select your answer -Quadratic modelLinear modelItem 10
e.Use the models developed in parts (b) and (c) to forecast subscribers for(todecimal).
Linear model | $ million |
Quadratic model | $ million |
f.Which of the two forecasts in part (e) would you use? Explain.
For the forecast one period ahead, the - Select your answer -quadraticlinearItem 13 model is likely slightly preferred because of its - Select your answer -lowerhigherItem 14 MSE.
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