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anonymous

  • one year ago

A company offered one half of its employees a bonus if the production of gears increased by 50%. The other half of the employees was not offered a bonus. As the end of the month, production in the group that did not get the bonus offer increased by a mean of 20 and production in the bonus group increased by a mean of 40. What is the correct order of steps to determine if the results are significant? A: Calculate the probability of a difference of 20. B: Randomly separate the employees’ individual results into two groups. C: Calculate the mean of each group.

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  1. anonymous
    • one year ago
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    D: Calculate the difference of the means. E: Run the experiment many times.

  2. anonymous
    • one year ago
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    B, C, E, A, D A, B, C, E, D B, C, D, E, A A, B, C, D, E

  3. anonymous
    • one year ago
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    @jim_thompson5910 , i think it's "A"

  4. jim_thompson5910
    • one year ago
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    B, C, E, A, D implies that you calculate the probability of getting a difference of 20 and then calculate the difference in the means next. But how can you find the probability of something that isn't set up yet?

  5. anonymous
    • one year ago
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    so we need to calculate the difference of the mean first? which is "C''

  6. jim_thompson5910
    • one year ago
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    yeah B, C, D, E, A makes more sense

  7. jim_thompson5910
    • one year ago
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    Essentially what is going on is you're making a bunch of calculations of xbar1 - xbar2. Call these differences \(\large d_i\) each difference is then used to create a distribution and you'll determine how likely it is to get a difference of 20 based on this distribution

  8. anonymous
    • one year ago
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    oh ok , thank you so much. i have one last question if you don't mind.

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