Read the following description and then answer items 12 to 16: Researchers are interested in determining...

Read the following description and then answer items 12 to 16: Researchers are interested in determining if there is a difference between two exercise regimens (A and B). The researchers think that the regimens may have differential effects on a treadmill test where the participants run to exhaustion.

12.Write the appropriate null hypothesis.

14. What is the dependent variable in this study?

16. Describe what happens if the researchers make a type II error.

Expert Solution

(12)

H0: Null Hypothesis: ( There is no difference between two exercise regimens (A and B).)

(14):

The dependent variable in this study : Effects on a treadmill test

(16)

Type II Error : Failure to reject a false null hypothesis

H0: Null Hypothesis: ( There is no difference between two exercise regimens (A and B).)

HA: Alternative Hypothesis: ( There is difference between two exercise regimens (A and B).)

Suppose in reality, there is difference between two exercise regimens (A and B). We wrongly conclude that there is no difference between two exercise regimens (A and B).. Type II Error committed in this situation. The effect of committing this error is that we wrongly think both exercise regimens A and B have the same effects on a treadmill test where the participants run to exhaustion., whereas in realty there is difference in effects on a treadmill test where the participants run to exhaustion. Thus, we wrongly ignore the difference.

milcah answered 1 hour ago

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