A company's annual sales are shown below in thousands of dollars for a period of 10 years.
Plot the time series;find the linear regression model,and also the forecast value and error for each of the years.Also discuss whether you think a linear model appears to be appropriate.

Question

A company's annual sales are shown below in thousands of dollars for a period of 10 years.
  Plot the time series;find the linear regression model,and also the forecast value and error for each of the years.Also discuss whether you think a linear model appears to be appropriate.

Quizplus · Accepted Answer

The Answer of A company's annual sales are shown below in thousands of dollars for a period of 10 years.
  Plot the time series;find the linear regression model,and also the forecast value and error for each of the years.Also discuss whether you think a linear model appears to be appropriate.

A Company's Annual Sales Are Shown Below in Thousands of Dollars