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Elan Coil [88]
2 years ago
13

ITS EASY PLS HELP!!!!!

Mathematics
1 answer:
faust18 [17]2 years ago
5 0

Answer:

3/18

Step-by-step explanation:

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An assembled product is built by 10 worker who coordinate their task. A total of 100 units will be made. Time records indicate t
Brut [27]

Answer:

a) 86%

b) 2nd unit = 82 hs.

3rd unit = 75 hs

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Step-by-step explanation:

We can model the learning curve for manufacturing the units as:

t=aX^b

where t is the time for the Xth unit, and a and b are parameters that we will calculate from the data,

We know that t(1)=95. Then, we have:

t(1)=a\cdot 1^b=95\\\\a=95

And we know that the fourth unit (X=4) take 71 hours to be completed (t(4)=71). Then, we can calculate the other parameter as:

t(4)=95\cdot4^b=71\\\\4^b=71/95\approx 0.7473\\\\b\cdot ln(4)=ln(0.7473)\\\\b=ln(0.7473)/ln(4)=-0.291/1.386\\\\b=-0.21

We have the model for the learning curve:

t=95X^{-0.21}

The learning rate percentage is calculated from the b parameter:

b=\dfrac{ln(LRP)}{ln(2)}=-0.21\\\\\\ln(LRP)=-0.21*ln(2)=-0.21*0.693=-0.1455\\\\LRP=e^{-0.1455}=0.86

The learning rate percentage is 86%.

b) The most likely times required for the 2nd and 3rd units are calculated with the model:

t(2)=95\cdot2^{-0.21}=95*0.864=82\\\\t(3)=95\cdot3^{-0.21}=95*0.794=75

c) If we use the model to calculate the time required for the 100th unit, we have:

t(100)=95\cdot100^{-0.21}=95*0.38=36

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3 years ago
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Answer:

c

Step-by-step explanation:

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