Assignment:
The dataset mdeaths reports the number of deaths from lung diseases for men in the UK from 1974 to 1979.
(a) Make an appropriate plot of the data. At what time of year are deaths most likely to occur?
(b) Fit an autoregressive model of the same form used for the airline data. Are all the predictors statistically significant?
(c) Use the model to predict the number of deaths in January 1980 along with a 95% prediction interval.
(d) Use your answer from the previous question to compute a prediction and interval for February 1980.
(e) Compute the fitted values. Plot these against the observed values. Note that you will need to select the appropriate observed values. Do you think the accuracy of predictions will be the same for all months of the year?
Your answer must be typed, double-spaced, Times New Roman font (size 12), one-inch margins on all sides, APA format and also include references.