"Do athletes who include imaging their success as part of their practice do better than athletes who do not include imaging?" The null hypothesis is
A) athletes who image do better than athletes who do not image.
B) athletes who image do worse than athletes who do not image.
C) athletes who image do not differ from athletes who do not image.
D) the population mean of athletes who image is greater than the population mean of athletes who do not image.

Question

Quizplus · Accepted Answer

The null hypothesis always assumes that there is no difference or no effect between two groups, in this case between athletes who include imaging in their practice and athletes who do not include imaging. Therefore, the correct null hypothesis is C, which states that there is no difference in performance between the two groups.

"Do Athletes Who Include Imaging Their Success as Part of Their