anonymous
  • anonymous
Smithers thinks that a special juice will increase the productivity of workers. He creates two groups of 50 workers each and assigns each group the same task (in this case, they're supposed to staple a set of papers). Group A is given the special juice to drink while they work. Group B is not given the special juice. After an hour, Smithers counts how many stacks of papers each group has made. Group A made 1,587 stacks, Group B made 2,113 stacks. Identify the: 12. Control Group 13. Independent Variable 14. Dependent Variable 15. What should Smithers' conclusion be?
Physics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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JamesJ
  • JamesJ
By definition, the control group in an experiment is the group that is not subject to the change. Hence, which group is that?
anonymous
  • anonymous
group b?
JamesJ
  • JamesJ
Yes. Now, by definition, the independent variable is the thing you are changing with the hope of some result. What is that here?

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anonymous
  • anonymous
to staple papers?
JamesJ
  • JamesJ
No. Think of this variable as input into the system. What input has changed?
anonymous
  • anonymous
special juice?
JamesJ
  • JamesJ
Yes. The indep variable is "Whether or not the worker(s) get the special juice" Now the dependent variable is the output, the thing you are measuring to see if changing the independent variable had any impact, what's that here?
anonymous
  • anonymous
the work effort put into stapleing papers?
JamesJ
  • JamesJ
No, that's not the output. The output is the number of stacks of paper they have stapled. That's the thing the experiment measures. That is why the experiment gives us measurement of that variable as part of the results.
JamesJ
  • JamesJ
Now ... what's he answer to "What should Smithers' conclusion be?"
anonymous
  • anonymous
the special juice does not work
JamesJ
  • JamesJ
Yes. In fact, it seems to have lower the productivity of the workers, not raised it. It has had the opposite effect to the hypothesized outcome.
anonymous
  • anonymous
thank you.

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