Philippine economy data from 2015 to 2019

The table below shows the Philippine economy data from 2015 to 2019.

Philippines Economy Data 2015 2016 2017 2018 2019 Population (million) 102 103 105 107 108 GDP per capita
(USD) 3.015 3.086 3.131 3.253 3.480 GDP (USD bn) 306 319 329 347 377 Economic Growth (GDP annual
variation in %) 6.3 7.1 6.9 6.3 6.0 Consumption (annual variation in %) 6.4 7.2 6.0 5.8 5.9

1. Forecast the population in 2020 using the three-period simple moving average.
2. Forecast the GDP per capita using the 3-period weighted moving average (use the 3,2,1 weights).
3. Forecast the GDP economic growth rate using the exponential smoothing (use α = 0.5).
4. Forecast the unemployment rate using the linear trend projection.
5. Forecast the GDP growth rate when investment (annual variation) is 10%.
6. Determine the regression equation of economic growth rate as a function of consumption and investment.
7.  Compute and interpret the coefficient of determination.
8. Forecast GDP growth rate when consumption is 6% and investment is 10%.
9.  Are consumption and investment good predictors of economic growth? Why or why not?