(Solution Download) The prevalence and patterns of knee injuries among women collegiate


The prevalence and patterns of knee injuries among women collegiate rugby players were investigated using a sample questionnaire, to which 42 rugby clubs responded.20 A total of 76 knee injuries were classified by type as well as the position (forward or back) of the player.

The prevalence and patterns of knee injuries among women collegiate
Chi-Square Test: Men Tear, MCL Tear, ACL Tear, Patella, PCL Tear
Expected counts are printed below observed counts
Chi-Square contributions are printed below expected counts
The prevalence and patterns of knee injuries among women collegiate
Chi-Sq = 3.660, DF = 4, P-Value = 0.454
4 cells with expected counts less than 5.0
a. Use the MINITAB printout to determine whether there is a difference in the distribution of injury types for rugby backs and forwards. Have any of the assumptions necessary for the chi-square test been violated? What effect will this have on the magnitude of the test statistic?
b. The investigators report a significant difference in the proportion of MCL tears for the two positions (P < .05) and a significant difference in the proportion of ACL tears (P < .05), but indicate that all other injuries occur with equal frequency for the two positions. Do you agree with those conclusions? Explain.

 







About this question:

Pay using PayPal (No PayPal account Required) or your credit card. All your purchases are securely protected by .
SiteLock