example 1 from the notes
sir, I am getting the answer if I don't do units in 100 like 1,4,2,7... so on
what i took was 100,400,200,700..
and while calculating A, I was getting the negative value I did it first without watching earlier because I have done basic regression in college. but why does it coming negative I checked my calculations also the calculations are correct
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regression analysis
is it because the values of cost are in 000. so should I take both values to the true one like cost 40,000;65,000 and units in 100,400,200
5y ago#2It makes no difference whether you use the full number of units or not. The value of 'a' will still be positive for this question and you must have made a mistake in your calculations (but I cannot tell you where the mistake is because I do not have your calculations to look at).
I did it trice now I found out it was just a mistake of 0.
I was calculating 0.6785x2800 instead it should be 0.06785.
now I get it sir thank you for helping me out.
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