The impact of one outlier in 168 observations: fit the simple periodic model to the New York temperature data with the outlier still included: (i) recompute values of the summary paragraph; (ii)...

The impact of one outlier in 168 observations: fit the simple periodic model to the New York temperature data with the outlier still included: (i) recompute values of the summary paragraph; (ii) compare the R2 values; (iii) create the acf() plot of the residuals; (iv) based on this analysis, what is the impact of a single outlier in a data set of 168 observations?