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Hi ,
I need help with the Log rule. Can you help me with the following question :
A manufacturing company wants to measure the learning rate that it has achieved with the manufacture of a new product item. The first item produced took 6 hours to make and the average time for the first 16 units was 3.3 hours.
What has been the learning rate for this product, to the nearest 1 % ?
I understand the doubling rule of 2 to the power of 4 gives you 16.
So from the first of 6 hours and 16 of 3.3 hours I divide 3.3/6 to give me 0.55.
so 0.55 equals R to the power of 4.
From here I get slightly confused … I calculate it as Log2(0.55) which gives me -0.862 so to the nearest 1% i say its 86%.
Can you advise me of a slightly different method ? or how you would tackle this question?
Thank you in advance 🙂
You cannot be asked to calculate the learning rate using the log formula – only using the doubling rule.
R^4 = 0.55
So R = fourth root of 0.55 = 0.86 (or 86%)
(To take a fourth root, either use the relevant buttons on your calculator, or alternatively just take the square root twice)
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