Question

Question 2

In one tailed T-test, if the test statistics is \(\mathrm{t}\) and \(\mathrm{t}_{0}\) is the t-value under null hypothesis, then \(\mathrm{p}\) -value \(=\operatorname{Pr}\left(\mathrm{t}<\mathrm{t}_{0} \mid\right.\) null hypothesis is true) if \(\mathrm{t}_{0}>0\) and p-value \(=\operatorname{Pr}\left(t>t_{0} \mid\right.\) null hypothesis is true) if \(t_{0}<0\).

Question 3

In a recent twin study from researchers at King's College London, the researchers wanted to first test whether identical twins show statistically significantly different thigh muscular power. To test this, they recruited 20 identical female twins. For this analysis,one-way ANOVA is preferred than the two group \(\mathrm{t}\) -test.

Question 4

In one-way ANOVA, a typical null hypothesis is: all means of groups are equal.

Question 5

$$ \text { In one-way ANOVA, we use } \chi^{2} \text { -test for the post hoc analysis. } $$

Question 6

In linear regression, population slope is always larger than sample slope.

Answer 1

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