Do antioxidants help protect against cancer? Thirty rats, who were prone to cancer, were given a number 1 - 30. A computer was used to randomly select ten numbers. The rats associated with these numbers were put in the first group. Ten more numbers were selected. The rats associated with these numbers were put in the second group. The remaining rats were put into group three. The first group of rats were given blueberry extract on their normal meal, the second group was given fish oil and the third group had nothing extra. Each of the rats were given similar living conditions. After two months, the rats were dissected and the number of tumors were counted. Match the part of the experiment above that goes with each of the following terms.A. having a group without anything extra and similar living conditions for allB. 10 rats in each groupC. blueberry, fish oil, nothingD. computer selecting which rats gets put into which groupE. number of tumorsF. type of antioxidant
1. randomization
2. replication
3. control
4. response variable
5. Factor(s)
6. Level(s)

You have a group of 30 rats prone to develop cancer, they were numbered from 1 to 30 and a computer randomly selected numbers in groups of ten, a total of three groups of ten rats were determined.

> The way the sampling was made is to make sure each rat of each group was selected at random and is independent of the rest.

Each rat represents a repetition of the experiment.

After the groups were determined, the first one received blueberry extract + regular meal.

The second group received fish oil + regular meal.

The third group received a regular meal with nothing extra added.

Aside from the food, all living conditions were similar.

>In this case you have only one "Factor" which is the type of antioxidant given with the meal and this factor has three levels. Level one "Blueberry", level two "Fish oil" and level three is the "control group"(this type of groups are added as a validation of the experiment, they are put under all the same conditions as the other groups except that they do not receive the treatment considered to affect the response variable, they are usually given a placebo)

To avoid confusing factors all other living conditions were the same.

After two months, each rat was dissected and the number of tumors was counted.

> The response variable is the number of tumors of the rats.

Considering all of this, the matching goes:

1. randomization ⇒ D. computer selecting which rats gets put into which group

2. replication ⇒ B. 10 rats in each group

3. control ⇒ A. having a group without anything extra and similar living conditions for all

4. response variable ⇒ E. number of tumors

5. Factor(s) ⇒ F. type of antioxidant

6. Level(s)⇒ C. blueberry, fish oil, nothing

Have a nice day!

lhmarianateixeira lhmarianateixeira · Answer 2 · 2025-03-25T23:53:19-04:00

In this exercise, we have to use the knowledge of proportionality and sets to identify each of the alternatives, as follows:

1) D

2)B

3)A

4)E

5)F

6)C

As it is an exercise on sets, we have to organize the information given in the utterance, like this:

Goup of 30 rats prone to develop cancer, they were numbered from 1 to 30 and a computer randomly selected numbers in groups of ten, a total of three groups of ten rats were determined.

The first one received blueberry extract + regular meal

The second group received fish oil + regular meal.

The third group received a regular meal with nothing extra added.

Now organizing the groups according to the information we find that:

First, computer selecting which rats gets put into which group will be randomization.
10 rats in each group correspond to replication.
Having a group without anything extra and similar living conditions for all is like control.
number of tumors will be response variable.
type of antioxidant is Factor(s)
blueberry, fish oil, nothing can be Level(s).

See more about sets at brainly.com/question/8053622