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¿Lógico o ilógico? Indicate whether the statement below is lógico (true) or ilógico (false).   Leila se rió mucho durante la película; no pudo divertirse.  

¿Lógico o ilógico? Indicate whether the statement below is lógico (true) or ilógico (false).   Mis padres se conocieron en Japón; por eso celebran sus aniversarios en Tokio.  

¿Lógico o ilógico? Indicate whether the statement below is lógico (true) or ilógico (false).   Busqué por horas, pero no encontré la casa de David. No quise visitarlo.  

Applying both seasonal and regular differencing to a time series ensures that the differenced series will be stationary.

After fitting a model to time series data, residuals are obtained. If we run a Shapiro Wilk test, and get a p-value of 0.84. What conclusion would you make?

If a time series follows an AR(1) process, the autocorrelation function

Which of the following properties are necessary for weak stationarity in time series? Choose all correct answers.

Select the correct statements. Choose all correct answers.  

Which of the following are advantages of using Maximum Likelihood Estimation (MLE) in time series analysis? Choose all correct answers.

If the moving average width in a trend estimation model is increased, the estimated trend becomes smoother.