Use R

For this attached time series data set in the link below (SP500 index) :

https://www.kaggle.com/code/andrewmvd/s-p-500-analysis-crawler

Plot your time series data with time on the horizontal axis. Add a horizontal time as the sample mean. Add a simple linear regression trend line with time as the independent variable. Add a moving average of three to your plot.

Plot the ACF for your time series. Indicate if the ACF cuts off (and when) or if it trails off.

Plot the PACF for your time series. Indicate if the PACF cuts off (and when) or if it trails off.