The bottom line (finally)
|Fish-2-Whale||8||267 g||94 g||44||18.5 g||5.1|
|Generic Brand||8||173 g||28|
|degrees of freedom
(for p-value = 0.05)
Our tcalc showed that the difference between tanks was about 5 times more than the random differences within tanks. And our tcrit showed that anything over 2.4 times would be statistically significant. So... finally, we can say definitively that Fish-2-Whale had a statistically significant effect on fish growth. Time to party!
Once more with gusto: if your tcalc is bigger than your tcrit, your results are statistically significant.
Copyright University of Maryland, 2007
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