Analisa conducted an experiment to determine if watching different types of commercials would affect a person's pulse. Her hypothesis was that pulse rate would change with different types of commercials. Each person watched seven different commercials, averaging 30 seconds each. Each person's pulse was taken before the commercial and then after each commercial. Based on her experiment Analisa concluded that a person's pulse rate changed when the person watched different types of commercials.

Which component is missing from Analisa's experiment?

A. a question

B. a hypothesis

C. a control group

D. a description of the experiment

Question

Jovan Page

Biology

22 January, 08:55

Analisa conducted an experiment to determine if watching different types of commercials would affect a person's pulse. Her hypothesis was that pulse rate would change with different types of commercials. Each person watched seven different commercials, averaging 30 seconds each. Each person's pulse was taken before the commercial and then after each commercial. Based on her experiment Analisa concluded that a person's pulse rate changed when the person watched different types of commercials.

Which component is missing from Analisa's experiment?

A. a question

B. a hypothesis

C. a control group

D. a description of the experiment

+3

Answers (1)

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Conway · Answer 1

The answer is D i believe because she did not included a data table showing the heart rates it just says she concludes but anyone can conclude so thats why we beed data and data of the expiriment is apart of description of the expiriment