(1)
Which of the following is not a necessary condition for weakly stationary time series?
Answer: Time series is Gaussian
Answer: Time series is Gaussian
Answer: Tree based models like (CART)
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Answer: 300
Does the above statement represent seasonality?
Answer: TRUE
1. Multiple box
2. Autocorrelation
Answer: 1 and 2
Answer: TRUE
Model 1: Decision Tree model
Model 2: Time series regression model
At the end of evaluation of these two models, you found that model 2 is better than model 1. What could be the possible reason for your inference?
Answer: Model 1 couldn’t map the linear relationship as good as Model 2
{23.32 32.33 32.88 28.98 33.16 26.33 29.88 32.69 18.98 21.23 26.66 29.89}
What is the lag-one sample autocorrelation of the time series?
Answer: 0.13
Answer: TRUE
Answer: Both A and B
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