9. Gravetter/Wallnau/Forzano, Essentials - Chapter 12 - End-of-chapter question 12 The following data represent the results from an independent-measures study comparing three treatment conditions....



9. Gravetter/Wallnau/Forzano, Essentials - Chapter 12 - End-of-chapter question 12






The following data represent the results from an independent-measures study comparing three treatment conditions.



















































































Treatment




I


II


III

527N = 24
163G = 72
222∑X² = 292
334
055
132
204
235
M = 2M = 3M = 4
T = 16T = 24T = 32
SS = 16SS = 24SS = 20






Use an ANOVA with α = .05 to determine whether there is a significant mean difference between the two treatments. (Round to two decimal places where needed.)










































Source


SS


df


MS


F


Fcriticalcritical

Between treatments









Within treatments





Total












F Distribution





Numerator Degrees of Freedom = 6


Denominator Degrees of Freedom = 16


















0.01.02.03.04.05.06.07.08.09.010.011.012.0F







Conclusion:




Reject the null hypothesis; there are no significant differences among the three treatments.






Fail to reject the null hypothesis; there are significant differences among the three treatments.






Reject the null hypothesis; there are significant differences among the three treatments.






Fail to reject the null hypothesis; there are no significant differences among the three treatments.











Jun 02, 2022
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