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A group of clinicians who are members of the U.S. military are concerned with the morale...

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Basic Math

A group of clinicians who are members of the U.S. military areconcerned with the morale of troops serving in war regions. Theyhypothesize that the number of tours a soldier serves significantlyaffects morale. To test this hypothesis, they select a sample ofsix soldiers who served three tours in war regions and ask them torate their morale during each tour they served in. Lower ratingsindicate lower morale. The table below lists the hypotheticalresults of this study.

Number of War Tours

First

Second

Third

6

5

4

5

4

6

7

6

2

6

7

5

5

7

6

7

7

4

  

  1. State the null and research hypotheses of this study.
  2. Calculate the Sums of Squares Within. Be sure to show yourwork.
  3. Fill out the remaining items in the source table:

    Source

    SS

    df

    MS

    F

    Between

    9

    Subject

    Within

    Total

    32.5

  1. Determine the critical F value for a hypothesis test atalpha = .01
  2. What decision should the researchers make?
  3. Should the researchers complete post-hoc tests? Explain.

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