this need to be done in R studio

Use the quarterly home price data for New Jersey to answer the following questions home sales prices data_1966.xlsx Download home sales prices data_1966.xlsx .

Show the details how you get the answer

a. Plot the series and discuss the main features of the data.

b. Apply simple exponential smoothing using weighting parameter, alpha =0.5 and alpha=0.8, to forecast the next quarter home prices. Which alpha would you pick to forecast next quarter home prices? Explain how you arrived at this conclusion.

DATE	HP
1/1/1966	22700
4/1/1966	23200
7/1/1966	23000
10/1/1966	22800
1/1/1967	24000
4/1/1967	24200
7/1/1967	23900
10/1/1967	24400
1/1/1968	25400
4/1/1968	26700
7/1/1968	26600
10/1/1968	27000
1/1/1969	27600
4/1/1969	28100
7/1/1969	28100
10/1/1969	27100
1/1/1970	27000
4/1/1970	27300
7/1/1970	26000
10/1/1970	26300