Use the Following Information for Following Questions

question 21

Essay

Use the following information for following questions:. Which treatment is most effective at
treating bathroom mildew: water mixed with vinegar, ammonia, or soap? In a study, researchers randomly
assigned 55 similar tile samples with similar amounts of mildew to one of three groups. Depending on
which group they were assigned to, each tile sample received a home remedy of water mixed with
vinegar, ammonia, or soap. Afterwards, each tile sample was examined and any remaining mildew was
measured. Researchers found that a soap and water mixture produced better results than both vinegar and
ammonia.
-Is this a controlled experiment or an observational study? Explain.

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Definitions:

Physical Reactions

Bodily responses to external stimuli, which can be involuntary and are often used as indicators of health, stress, or emotional state.

Work Environment

The setting, conditions, and culture in which employees operate, which can significantly affect their performance and well-being.

Social Emotions

Emotions that depend on the thoughts, feelings, or actions of others, such as embarrassment, guilt, or pride.

Self-Conscience Emotions

Feelings that arise from reflection on our actions, which can include guilt, shame, embarrassment, and pride.