t tests, NNOVA null hypothesis

I don’t understand this Probability question and need help to study.

Post a null hypothesis that would use a t test statistical analysis.. Use the same hypothetical situation taken in the t test hypothesis, and turn it into a null hypothesis using a one-way ANOVA analysis and a two-way ANOVA.

http://www.youtube.com/watch?v=yfLvSZs2WDc
http://www.youtube.com/watch?v=CxeeqqyUAgE

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