Question

Will storing batteries in a freezer make them last longer? To find out, a company that produces batteries takes a random sample of 100 AA batteries from its warchouse. The company statistician randomly assigns 50 batteries to be stored in the freezer and

the other 50 to be stored at room temperature for 3 years. At the end of that time period, each battery's charge is tested.

Result:
Batteries stored in the freezer had a significantly higher average charge.

What conclusion can be drawn from this study?

A)We can infer that being stored in the freezer caused the increase in average charge. We can also generalize this result to the entire population of batteries produced by the company.

B)We can't infer that being stored in the freezer caused the increase in average charge. Furthermore, we can't generalize
this result to the entire population of batteries in the warehouse.

C)We can infer that being stored in the freezer caused the increase in average charge. We can also generalize this result to the entire population of batteries in the warehouse.

D)We can infer that being stored in the freezer caused the increase in average charge. However, we can't generalize this result to the entire population of batteries in the warehouse.

E)We can't infer that being stored in the freezer caused the increase in average charge. However, we can generalize this result to the entire population of batteries in the warehouse.

Answer 1

The study does not provide enough evidence to conclude that storing batteries in a freezer will make them last longer and the results cannot be generalized to the entire population of batteries. So the correct answer is option B.

Step-by-step explanation:

The conclusion that can be drawn from this study is:

B) We can't infer that being stored in the freezer caused the increase in average charge. Furthermore, we can't generalize this result to the entire population of batteries in the warehouse.

The reason we can't make these inferences is because the study only involved a random sample of 100 AA batteries. To make generalizations about the entire population of batteries produced by the company, we would need a larger and more representative sample. Additionally, there may be other factors influencing the charge of the batteries stored in the freezer, so we can't solely attribute the higher average charge to the storage condition.