To determine the effectiveness of learning a cartwheel by watching a video, a gymnastics teacher randomly...

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To determine the effectiveness of learning a cartwheel bywatching a video, a gymnastics teacher randomly divided 15 novicegymnasts into 3 groups of 5 students each. One group (control)viewed a live demonstration of a cartwheel one time and then wastested. A second group (video) watched a video of a cartwheel 10times, and then was tested. The third group (live) watched 10 livedemonstrations of a cartwheel and then was tested. All 15 subjectswere ranked on their ability to perform the cartwheel with thefollowing results (1 is the highest rank, 15 is the lowestrank).

ControlVideoLive
821
1253
1374
1496
151110

1. Test to see if there are significant differences in thegroup’s ability to perform the cartwheel.

2. If significant results are found, perform all 3 post-hoctests and write up the conclusion for each. Which group performedthe best?

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3.9 Ratings (614 Votes)
NULL HYPOTHESIS H0 ALTERNATIVE HYPOTHESIS Ha At least one mean is differentalpha005By using MS Excel we haveFrom    See Answer
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