We are examining two different managers for the last $8$ years to find out which one has a

better track record to follow an index.

Year Manager A Manager B Index

$19\mathrm{.}07\%9\mathrm{.}06\%9\mathrm{.}1\%$

$210\mathrm{.}1310\mathrm{.}1810\mathrm{.}16$

$312\mathrm{.}2412\mathrm{.}3411\mathrm{.}98$

$46\mathrm{.}736\mathrm{.}726\mathrm{.}71$

$52\mathrm{.}142\mathrm{.}122\mathrm{.}22$

$6-1\mathrm{.}67-1\mathrm{.}65-1\mathrm{.}89$

$7-0\mathrm{.}49-0\mathrm{.}79-0\mathrm{.}67$

$84\mathrm{.}825\mathrm{.}065\mathrm{.}03$

a$/$ Which manager has the highest average return?

b$/$ What is the tracking error for each manager? Which manager was the closest to the

index?