The following data are for calculator sales in units at an electronics store over the past nine weeks:

$\backslash$table$[[$Week$,$Sales,Week,Sales$],[1,44,6,52],[2,50,7,60],[3,42,8,55],[4,51,9,62],[5,52,,]]$

Obtain the trend projection with regression forecast for weeks $10-13.($Enter your responses rounded to two decimal places.$)$

$\backslash$table$[[$Period$,$Forecast, $F_t$