[Daryn]

I took these X1,X2 and … variables from the ANOVA summary that is given in the task. There is a table with the intercept and variables coefficient. I did it in the same was as in the example from unit.

in the xls file there is no data about variables.

What other variables should I try? not clear.

[Daryn]

Hello,

I am like others in this chat have difficulties in solving the 1 question in the last assessment of unit 7 re the predicted sales.

I used the formula Y = 588 – 30X1 – 20X2 + 10X3 from the example of unit 7.
I got the following : -63965+150*235+15000*0+30000*1+11779*3 = 36622.
but this is wrong. WHY?????
I am really confused and do not understand what I am doing wrong.

Please HELP!!!!

[Author]

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