I could buy a flower seed packet from grocery outlet. I open the packet finding 4 sunflower seeds. i plant 2 sunflower seeds in 2 pots of soil and plant the other 2 sunflower seeds in 2 pots of sand. I also will water each plant every day and ensure each plant has the same amount of sunlight. Then I can measure the height of the sunflowers after one month.

Question

I could buy a flower seed packet from grocery outlet. I open the packet finding 4 sunflower seeds. i plant 2 sunflower seeds in 2 pots of soil and plant the other 2 sunflower seeds in 2 pots of sand. I also will water each plant every day and ensure each plant has the same amount of sunlight. Then I can measure the height of the sunflowers after one month.
What are the treatments in your experiment?
The treatment would be the soil or sand the plants grow in.

What is the response variable in your experiment?

The response variable in my experiment is the amount of plant growth

Where in your experiment would random selection occur?
Random selection occurs when the plants are chosen (from the location you are getting your plants from).

Where in your experiment would random assignment occur?
Random assignment occurs when the plants are assigned to solid or sand.

GPT-4o mini · Answer

Your experiment is set up to test the effects of different growing mediums (soil vs. sand) on the growth of sunflower plants. Here's a breakdown of the components of your experiment based on your descriptions:

Treatments: The treatments in your experiment are the different growing mediums: soil and sand.
Response Variable: The response variable in your experiment is the growth of the sunflower plants, which you will measure as their heights after one month.
Random Selection: In your experiment, random selection would occur when you choose the initial sunflower seeds or plants from the source (the grocery outlet). This ensures that you have a representative sample of sunflower plants.
Random Assignment: Random assignment occurs when you assign the sunflower seeds to either the soil or sand conditions. You could randomly assign which seeds go into which medium to control for any biases that might arise from their inherent differences.

Overall, your experimental design is thoughtful, and ensuring that all other factors (such as watering and sunlight) are kept constant will help to isolate the effects of the treatments on plant growth.