$2$

$4$

points

Ross Co$.,$ Westerfield, Inc., and Jordan Company announced a new agreement to market their respectlve products in China on July $18(7/18),$ February $12(\frac{2}{12}),$ and October $7(10/7),$ respectively. Glven the Information below, calculate the cumulative abnormal return $($CAR$)$ for these stocks as a group. Assume all companles have an expected return equal to the market return. $($A negatlve value should be Indlcated by a minus sign. Leave no cells blank $-$ be certaln to enter $"0"$ wherever required. Do not round Intermedlate calculations. Round your answers to $1$ decimal place.$)$

$\backslash$table$[[$Ross Co$.,$Westerfield, Inc.,Jordan Company$],[$Date$,\backslash$table$[[$Market$],[$Return$]],\backslash$table$[[$Company$],[$Return$]],$Date,$\backslash$table$[[$Market$],[$Return$]],\backslash$table$[[$Company$],[$Return$]],$Date,$\backslash$table$[[$Market$],[$Return$]],\backslash$table$[[$Company$],[$Return$]]],[\frac{7}{12},-0\mathrm{.}2,-0\mathrm{.}1,\frac{2}{8},-0\mathrm{.}2,-0\mathrm{.}1,\frac{10}{1},1\mathrm{.}2,1\mathrm{.}3],[\frac{7}{13},1,0\mathrm{.}3,\frac{2}{9},-0\mathrm{.}3,-0\mathrm{.}1,\frac{10}{2},1\mathrm{.}1,1\mathrm{.}3],[\frac{7}{16},0\mathrm{.}6,0\mathrm{.}5,\frac{2}{10},0\mathrm{.}6,0\mathrm{.}6,\frac{10}{3},0\mathrm{.}9,1\mathrm{.}3],[\frac{7}{17},-0\mathrm{.}6,-0\mathrm{.}2,\frac{2}{11},0\mathrm{.}8,1\mathrm{.}9,\frac{10}{6},-0\mathrm{.}1,-0\mathrm{.}1],[\frac{7}{18},-1,1\mathrm{.}3,\frac{2}{12},-0\mathrm{.}1,0\mathrm{.}1,\frac{10}{7},-2\mathrm{.}4,-0\mathrm{.}1],[\frac{7}{19},-1\mathrm{.}7,-0\mathrm{.}3,\frac{2}{15},1\mathrm{.}4,1\mathrm{.}7,\frac{10}{8},1\mathrm{.}4,0\mathrm{.}4],[\frac{7}{20},-8\mathrm{.}9,-0\mathrm{.}1,\frac{2}{16},0\mathrm{.}7,$e$.7,\frac{10}{9},-8\mathrm{.}5,-0\mathrm{.}4],[\frac{7}{23},0\mathrm{.}6,0\mathrm{.}4,\frac{2}{17},-0\mathrm{.}1,$a$,\frac{10}{10},\mathrm{.}1,-0\mathrm{.}1],[\frac{7}{24},1,,\frac{2}{18},1\mathrm{.}4,0\mathrm{.}4,\frac{10}{13},-0\mathrm{.}3,-0\mathrm{.}6]]$

$\backslash$table$[[,$Abnormal returns $($Ri$-$RM$),],[\backslash$table$[[$Days from$],[$announcement$]],$Ross,W'field,Jordan,Sum,$\backslash$table$[[$Average abnormal$],[$return$]],\backslash$table$[[$Cumulative$],[$average residual$]]],[-4,,,,,,],[-3,,,,,,],[-2,,,,,,],[-1,,,,,,],[0,,,,,,],[2,,,,,,],[3,,,,,,]]$