The difference in the observed neurological disease rate, xbar, for a sample of veterans who served in Iraq is not “statistically significantly different” (alpha = .05), from the overall population disease rate for all U.S. veterans, mu0. This means:
A. xbar = mu0
B. The disease rates xbar and mu0 are not equal, but the size of the difference is not practically important, not big enough to matter
C. H0: mu for Iraq vets = mu0 was not rejected
D. None of the above
Solution:
Given that:
Correct : A. xbar = mu0
Because xbar is not “statistically significantly different from overall population means they equal.
The difference in the observed neurological disease rate, xbar, for a sample of veterans who served...
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