Statistics: problem 0001

Initial data:
There is the following data on daily steel production in June:
Дни 1 2 3 4 5 6 7 8 9
Тыс. т. 15,1 15,5 16,0 15,6 15,7 17,1 17,8 16,6 17,6

Required:
1. Calculate the gain by days, the average growth rate, the average absolute growth for the entire period, the absolute value of 1% growth, the point of growth, the coefficients of the lead (lag).
2. Perform smoothing of the series using the moving average method (period is three) and give a line graph (according to actual data and according to aligned data).
3. Perform analytical alignment and extrapolation over 2 years.
4. Draw conclusions.