(Solved): (a) Construct a time series plot. What type of pattern exists in the data? The time series plot in ...

(a) Construct a time series plot. What type of pattern exists in the data? The time series plot indicates a trend pattern. The time series plot indicates a seasonal pattern. The time series plot indicates a horizontal pattern. The time series plot indicates a cyclical pattern. (b) Use a three-week moving average to develop a forecast (in cases) for week 11. (Round your answer to two decimal places.) $F_{11}=\text{ cases }$ (c) Use exponential smoothing with a smoothing constant of $?=0.9$ to develop a forecast (in cases) for week 11. (Round your answe $F_{11}=\text{ cases }$ (d) Which of the two methods do you prefer? Why? The 3-week moving average is preferable since it has a smaller MSE compared to exponential smoothing with $?=0.9$. Exponential smoothing with $?=0.9$ is preferable since it has a larger MSE compared to the 3-week moving average. Exponential smoothing with $?=0.9$ is preferable since it has a smaller MSE compared to the 3-week moving average. The 3-week moving average is preferable since it has a larger MSE compared to exponential smoothing with $?=0.9$.