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Question 234 pts Which of the following is considered a Null Hypothesis? The group of college...

Question 234 pts

Which of the following is considered a Null Hypothesis?

The group of college seniors who exercise will score worse on an exit exam compared to college seniors who do not exercise.
The group of college seniors who exercise will score better on an exit exam compared to college seniors who do not exercise.
The group of college seniors who exercise will score the same on an exit exam compared to college seniors who do not exercise.
The group of college seniors who exercise will score different on an exit exam compared to college seniors who do not exercise.
Math   Statistics-And-Probability   
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Homework Answers

Answer #1

A null hypothesis is a precise statement about a population that we try to reject with sample data. Often -but not always- the null hypothesis states there is no association or difference between variables or subpopulations.

So if we are comparing the group of college seniors. For the null hypothesis, their score difference should be 0. The null hypothesis should be the same score.

Ans. Our null hypothesis is

The group of college seniors who exercise will score the same on an exit exam compared to college seniors who do not exercise.

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