The Result of a Hypothesis Is Described in Terms of the Probability

question 131

Essay

The result of a hypothesis is described in terms of the probability of obtaining a particular sample. Use the given contextto formulate the null and alternative hypotheses. Discuss whether the sample provides evidence for rejecting the nullhypothesis.
-The mean resting heart rate for students at Northridge College is 72 beats per minute. An exercise physiologist believes that for athletes, the mean resting heart rate will be lower.
She finds that for a random sample of 55 athletes at the college, the mean resting heart rate is 71 beats per minute.
Assuming that the mean resting heart rate for all athletes at the college is 72 beats per minute, the probability of selecting a random sample with a mean of 71 or less beats per minute is $0.14$ .

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Definitions:

Abnormal Behavior

involves patterns of action, thoughts, or emotions considered atypical or significantly deviant from societal norms.

Physical Cause

An underlying bodily reason or factor contributing to a physical condition or phenomenon.

Psychiatrist

A mental health professional who is a medical doctor.

Biological Perspective

The biological perspective looks at psychology in terms of biological processes, structures, and substances and how they influence behavior, thoughts, and emotions.