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Please kindly help me solve the section A question 11.A company is intending to sell a new product. I do not understand how the 87.5% was arrived at as the answer. i got 75%
Please I’m referring to the new ACCA F5 Mock Exams(Objective test exams). Question 11
I assume that you are meaning our mock exam (and not the ACCA specimen exam).
As it states on the page before the exam, questions are selected at random from a bank of questions and so you will not get the same questions, in the same order, each time you attempt it. So ‘question 11’ means nothing to me.
In future, as it says before the test, you must copy the question here if you have a problem.However, I think I have found the one that you are referring to.
The average time per unit if they make 2 units is (8+6)/2 = 7 hours.
So the learning rate is 7/8 = 87.5%(The doubling rule applies to the average time per unit)
The free lecture on learning curves may help you.
ok..i got 87.5% too using the formula: y=ax^b, although im not sure if its the right way to do it, plus its also time consuming:
the values which i used were as follows:y= 7 (av. cumulative time)
a=8 (since this is the time req for the 1st one)
x=2 (for # of units)
calculations to get b:
y=a(x^b)
7=8(2^b)
7/8=2^b
b=log(7/8) / log2
b=-.19264…
since b=logLR/log2, therefore -.19264*log2=logLR
logLR=-0.0579….
so LR = 10^-0.0579 = 0.875
CORRECT?Well, yes it is obviously correct – I wrote in my previous reply that the answer is 87.5%
However, much easier is to use the doubling rule as I did in my previous reply (and you can be tested specifically on the doubling rule rather than on using the formula).
Hi could I have some assistance with a question I’m getting two answers and they are both among the multiple choice answers. Here goes the question
The times taken to produce each unit of the first four batches of a new product were as follows:
Batch # time taken
1. 100 mins
2. 70 mins
3. 59 mins
4. 55 minsWhat was the rate of learning closest to?
I’m getting 85% when I use the cumulative time taken at batch 2 which is 170 and divide it by 2
However when I use the cumulative time taken for batch 4 I’m getting 84.3%. At batch 4 the cumulative time taken is 284…..284/4=71
71/100=r(squared) etcNeed to knw which would work in this scenario……
I am surprised if the question has both answers in the choices.
However, if it does then 84.3% is the better choice. The reason is that you would not expect the learning rule to work precisely in practice, and the more results you looked at the better.
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