Work with the golub data set.

$($a$)$ Compute the effect size for the expression values of the gene with gene name

$"$MSN Moesin"

using every patient in the golub data. Hint: Use grep $()$ to find the correct row.

$($b$)$ Compute the effect size for the expression values of the first $2000$ genes using AML patients in the golub data.

$($c$)$ Create a histogram of the effect sizes in part $($b$).$

$($d$)$ Give the $3$ largest effect sizes found in $($b$)$ and the gene names $($found in the second column of golub. gnames$)$ for the $3$ largest effect sizes.