Hi,
I have a file with all the data obtained from 30 questionnaires.
Some questions are related to the service provided by 3 different areas (A1, A2, A3)
The values used are from 1 = excellent service, to 5 = poor service
The data looks like this
' Person 1 Person 2 Person 3...
Hello,
I have data about the sales of a period of time, I created a graph and a trendline based on that data.
How can I found the values of the trendline, I need to know exactly the values.
And, How much data do I ned to have in order to create a trend line, I know that much is better, but...