Consider the following data:
The equation of straight line trend by using least square method is, $y =138.86+7.64 (x-2007)$, then the trend values for the year 2004 is |
115.94 215.94 151.94 111.94 |
115.94 |
The correct answer is Option (1) → 115.94 ** Trend equation: $y = 138.86 + 7.64(x - 2007)$ For year 2004: $x = 2004$ $y = 138.86 + 7.64(2004 - 2007)$ $y = 138.86 + 7.64(-3)$ $y = 138.86 - 22.92$ $y = 115.94$ The trend value for the year 2004 is 115.94. |