bart believes that mice exposed to microwaves will become extra strong (maybe he’s been reading too much radioactive man). he decides to perform this experiment by placing 10 mice in a microwave for 10 seconds. he compared these 10 mice to another 10 mice that had not been exposed. his test consisted of a heavy block of wood that blocked the mouse food. he found that 8 out of 10 of the microwaved mice were able to push the block away. 7 out of 10 of the non - microwaved mice were able to do the same. identify the - 11. control group 12. independent variable 13. dependent variable 14. what should bart’s conclusion be? 15. how could bart’s experiment be improved?

Question

Accepted Answer

### Question 11: Identify the Control Group
# Brief Explanations:
The control group in an experiment is the group not exposed to the independent variable. Here, the independent variable is microwave exposure, so the control group is the 10 mice that had not been exposed to microwaves.
# Answer: The 10 mice that had not been exposed to microwaves

### Question 12: Identify the Independent Variable
# Brief Explanations:
The independent variable is the factor manipulated by the experimenter. In this experiment, Bart manipulates whether mice are exposed to microwaves, so the independent variable is microwave exposure (or "whether the mice are exposed to microwaves").
# Answer: Microwave exposure (or "whether the mice are exposed to microwaves")

### Question 13: Identify the Dependent Variable
# Brief Explanations:
The dependent variable is the outcome measured, which depends on the independent variable. Here, the outcome is the mice's ability to push the block (measured by the number of mice able to do so), so the dependent variable is the mice's ability to push the heavy block of wood (or "the number of mice able to push the block").
# Answer: The mice's ability to push the heavy block of wood (or "the number of mice able to push the block")

### Question 14: What should Bart’s conclusion be?
# Brief Explanations:
Compare the results: 8/10 microwaved mice and 7/10 non - microwaved mice could push the block. The difference is small, and with a sample size of 10, it's not conclusive that microwaves make mice extra strong. Or, if we consider the slight difference, maybe microwaves have a small positive effect, but more testing is needed. A more accurate conclusion is that based on this experiment, there is not strong evidence that microwaves make mice extra strong (or the difference in strength - related ability between microwaved and non - microwaved mice is not significant, and more trials are needed).
# Answer: Based on this experiment, there is not strong evidence that microwaves make mice extra strong (or the difference in the ability to push the block between microwaved and non - microwaved mice is small, and more trials are needed to draw a firm conclusion about microwaves increasing mouse strength).

### Question 15: How could Bart’s experiment be improved?
# Brief Explanations:
To improve the experiment, Bart could increase the sample size (use more than 10 mice in each group) to make results more reliable, repeat the experiment multiple times to check consistency, control other variables (like mouse age, diet, health) to ensure they don't affect the outcome, or use a more precise way to measure "strength" (e.g., measure the force applied to push the block).
# Answer: Bart could increase the sample size (e.g., use more than 10 mice in each group), repeat the experiment multiple times, control other variables (like mouse age, diet, health), or use a more precise method to measure the mice's strength - related ability.

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Explanation:

Question 11: Identify the Control Group

Answer:

Question 12: Identify the Independent Variable