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Scenario A: An experimental study was used to examine whether time of daily

announcements impact worker productivity. A factory with two facilities with similar worker productivity percentages participated in the study. One facility did daily announcements at the start of each shift; the other facility did daily announcements an hour before the end of a shift. Worker productivity percentages were compared between the two facilities.

Use this scenario to answer the following question.

What is the independent variable?

 

What is the dependent variable?

 

What is the null hypothesis?

 

What is the alternative/research hypothesis?

 

If they reported t (30) = 1.95, using your Appendix, what is tcv?

 

What should the researcher conclude about the null hypothesis? (Fail to reject or reject?)


 

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