Question 4(b) Solution The sale value for the bound 15 lav be work outd using the least squ bes technique. Equations to calculate the variables are; Yt = a + bt - (1.0) where Yt= computed value of the variable to be predicted i.e. stark(a) revenue value a = y-axis intercept b = slope of turn off line t = the unconditional variable i.e. period (t) b = Σ Ytt – nŤ Ŷt - (2.0) Ŷt = average/ hateful of the gross revenue values Σ t2 – nŤ2 Ť = average/ conceive of the independent variable/period n = number of periods a = Yt – bt - (3.0) First maltreat is to calculate the various variables ( t2, Ytt) in the par from the given sales data.
This can be shown on the carry over below; | terminus (t) |Sales (Yt) |t × Yt |t2 | |1 |32 |32 |1 | |2 |28 |56 |4 | |3 |30 ! |90 |9 | |4 |34 |136 |16 | |5 |30 |150 |25 | |6 |43 |258 |36 | |7 |36 |252...If you require to get a full essay, order it on our website:
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