Question

Question: I need this answered using the application SPSS. A researcher wants to find out whether balance training would have a significant effect on the amount injuries in professional gymnasts. Gymnasts were measured for four consecutive months while receiving balance training. The number of injuries sustained by seven gymnasts are contained in the dataset. 1. Perform a statistical test to determine if there is a significant decrease in injuries due to balance training intervention, including post hoc analysis if appropriate. (Copy & paste from SPSS Output) I need to Include descriptive statistics, Mauchly's test, ANOVA results, Bonferroni results, and plot

Answer 1

Since there are 4 different groups so we have k=4. Therefore degree of freedoms are:

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F test statistics is

Critical value of F for alpha=0.05 is : 2.922

Source of Variation	SS	df	MS	F	P-value	F crit
Between Groups	73.79	3	24.6	9.018	0.0002	2.922
Within Groups	81.84	30	2.728
Total	155.63	33