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A researcher wants to look at how exercise affects mood. she anticipates that exercising more will...

A researcher wants to look at how exercise affects mood. she anticipates that exercising more will improve mood. she has a group of participants run for 30 minutes and then has them rate how happy they feel on a scale from 0-10 and obtains the following scores: 9,7,8,5,7,6,4. The population mean on this Likert scale is 5. Use a t-test to determine if the treatment is statistically significant/you should reject the null hypothesis at the .05, .01, and .001 p-values.

Math   Statistics-And-Probability   
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Answer #1

since p value <0.05 ; we can reject Ho at 0.05 level of signfiicance

since p value >0.01 and 0.001 we can not reject Ho at 0.01 and 0.001 level of significance

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