learning curve

This topic contains 5 replies, has 3 voices, and was last updated by Profile photo of John Moffat John Moffat 9 months ago.

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  • Profile photo of josy87
    josy87
    Participant

    Hi Sir

    The first batch of a new product took six hours to make and the total time for the first 16 units was 42.8 hours, at which point the learning effect came to an end.

    Calculate the rate of learning

    I got the equation 42.8 = 6*16*$4
    Sir how to use the calculator if \i want to work with log as its easier for me.6
    the equation for the answer is 42.8 = 16 x (6 x r4), why as it should start with 6?


    Profile photo of bevmadd
    bevmadd
    Participant

    How do you estimate the learning rate and learning effect


    Profile photo of John Moffat
    John Moffat
    Keymaster

    I don’t understand where you got your first equation from!

    The average time per unit for 16 units is 42.8 / 16 = 2.675

    The average time for 1 unit is 6 hours.
    If the learning rate is r, then the average time for 2 units is 6 x r

    Average time for 4 units is 6 x r^2

    Average time for 8 units is 6 x r^3

    Average time for 16 units is 6 x r^4

    so 6 x r^4 = 2.675

    r^4 = 2.675 / 6 = 0.44583

    so r = 0.817


    Profile photo of josy87
    josy87
    Participant

    Goodness thanks Sir. you make F5 almost easier than F6. Again THANKS


    Profile photo of josy87
    josy87
    Participant

    r^4 = 2.675 / 6 = 0.44583

    so r = 0.817
    which button on the calculator to use
    i used Ln 0.44583/ Ln 4 but its not working


    Profile photo of John Moffat
    John Moffat
    Keymaster

    You are welcome :-)

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