Question $1(1$ point$)$

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What does the 'aov' function in R do as used in the HOS$08$A code?

Question $1$ options:

It performs a t$-$test for each pair of data samples.

It performs an analysis of variance $($ANOVA$)$ test.

It calculates the standard deviation of the data samples.

It calculates the means of the data samples.

Question $2(1$ point$)$

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What does the 'TukeyHSD$()\text{'}$ function calculate in the given code?

Question $2$ options:

The standard errors of the group mean.

The pairwise mean differences between groups.

The p$-$values for pairwise t$-$tests between groups.

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