Final answer:
To calculate the forecasts using the trend-projection method, determine the trend line equation using linear regression. Substitute the years into the equation to obtain the forecasted values.
Step-by-step explanation:
The trend-projection method is a technique used to forecast future values based on historical data. To calculate the forecasts for years 1 through 6 using the trend-projection method, you need to determine the trend line equation using linear regression. Once the equation is obtained, you can substitute the years 1 through 6 into the equation and calculate the corresponding forecasted values. Round your responses to one decimal place.
For example, if the trend line equation is y = 0.5x + 3 and you want to find the forecast for year 2, you substitute x = 2 into the equation:
y = 0.5 * 2 + 3 = 1 + 3 = 4.
Repeat this process for the years 1 through 6 to obtain the forecasted values.