Question

smithers thinks that a special juice will increase the productivity of workers. he creates three groups of 50 workers each and assigns each group the same task, to staple sets of papers. group 1 drinks 100ml of the special juice while they work. group 2 drinks 50ml of the special juice while they work. group 3 is not given the special juice while they work. after an hour, smithers counts how many sets of papers each group stapled. he made the data table below. number of sets of paper stapled group 1 1,030 group 2 1,700 group 3 2,113 identify the: 1. independent variable: 2. dependent variable: 3. controlled variable: 4. what should smithers conclusion be? how did the juice affect the number of papers each group stapled? use data (numbers) to support your answer.

Explanation:

Step1: Identify independent variable

The variable that is changed or manipulated is the amount of special - juice. So, the independent variable is the amount of special juice given to each group.

Step2: Identify dependent variable

The variable that is measured as a result of the change in the independent variable is the productivity (number of paper sets stapled). So, the dependent variable is the number of sets of papers stapled.

Step3: Identify controlled variable

The number of workers in each group (50) and the task (stapling sets of papers) are kept the same. So, the number of workers and the task are controlled variables.

Step4: Analyze data for conclusion

Group 1 had 1030 sets stapled with 100mL of juice, Group 2 had 1700 sets stapled with 50mL of juice, and Group 3 (control group with no juice) had 2113 sets stapled. The data shows that the special juice did not increase productivity. In fact, the group with no juice stapled the most papers.

Answer:

1. Independent Variable: Amount of special juice
2. Dependent Variable: Number of sets of papers stapled
3. Controlled variable: Number of workers, the task of stapling papers
4. Conclusion: The special juice did not increase the productivity of workers. Group 3 (no juice) stapled 2113 sets, Group 2 (50mL juice) stapled 1700 sets, and Group 1 (100mL juice) stapled 1030 sets. The more juice the workers drank, the fewer papers they stapled.