Question

identify the controls and variables
smithers thinks that a special juice will increase the productivity of workers. he creates two groups of 50 workers and assigns each group the same task (in this case, theyre 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 -

1. control group
2. manipulated (independent) variable
3. responding (dependent) variable
4. what should smithers conclusion be?
5. how could this experiment be improved upon?

Explanation:

1. The control group is the one not receiving the treatment (special juice), so it's Group B.
2. The manipulated variable is what is changed in the experiment, which is the special juice.
3. The responding variable is what is measured, here it's the number of stacks of papers made.
4. Since Group B made more stacks without the special juice, the conclusion is that the special juice decreased productivity.
5. It could be improved by increasing the sample size, doing multiple trials, and controlling for other factors like worker experience or fatigue.

Answer:

1. Group B
2. Special juice
3. Number of stacks of papers made
4. The special juice decreased productivity.
5. Increase sample size, do multiple trials, control for other factors.