Creating a linear trend line in Excel
 

There has been some debate in COLA as to the correct way to create a
linear trendline in Excel. Someone in the forum kindly made a video to
show what he thought was the correct method
http://tmp.gallopinginsanity.com/Lin...neCreation.mov

A couple of other people in the group say that the video skips a
number of steps but when I look at the directions from Microsoft I do
not see any they could be referring to.

Does anyone see any missing steps for the creation of a linear trend
line? I admit this is a bit over my head so any input would be welcome.