[magggggie26]

I went through your points and the example of BBQ cases but still struggling in both questions…

For Q3, Additional revenue = additional profit (because there is no variable cost of sale) so it is the amount of investment that you need to deduct.
(63,964.58)
150 35,243.50
15000 6,093.71
220000 (250k-30k) 249,396.91
3.00 35,337.92
Sum 262,107.46

I got the above for sales
profit = Sales ticket – amount of investment (262,107.46 – 220,000)
additional profit 42,107.46 – 16,719.22 = 25,288.24
but this is not the answer…

For Q5, if the only variables is population per town, why I can’t get the question correct by using linear regression y=a+bx which a = -63964.57, b=0.40624 and x=1000? I got a negative answer…

Pls guide where is wrong.
Thank you very much

[magggggie26]

I read all the post from Kim but I still stuck in Q3 and Q5 in unit 7. Can anyone give me some directions? I have no idea whether Q3 is related to Q2. If it is not related, extra profit means extra sales here as no other variable cost except automated ticket barrier investment. Therefore, I used linear equation to find out the answer: y = -63,964.57 + 1.1336* 250,000
but it turns out wrong.

For Q5, I am confused how population will affect the sales if no purchase is provided.

[Author]

Posts