Please solve all four questions.

Consider the following information regarding the performance of a money manager in a recent month. The table represents the actual return of each sector of the manager's portfolio in column $1,$ the fraction of the portfolio allocated to each sector in column $2,$ the benchmark or neutral sector allocations in column $3,$ and the returns of sector indices in column $4.$

$\backslash$table$[[,,,$Benchmark,$],[,$Actual Return,Actual Weight,Weight,Index Return$],[$Equity$,2\mathrm{.}3\%,0\mathrm{.}5,0\mathrm{.}5,2\mathrm{.}8\%$