$14-8$ Companies usually estimate work based on how many units of work a staff person can do in a month, usually called man$-$months or sometimes development months, staff months, person months, or$,$ for example, engineer months. If the work must be estimated in man$-$weeks, the man$-$hours per month are actually available for actual direct labor work.

our company has received a reques for. oys earin in of your customers, and man comeny a decided to submit a bid. Only one agerrestim in your company win bed mirag to pet hand the work and the department manager estimates that $3000$ hours p direct labor will be required.

You or will be regu calculate the number of hours he filable in a typical man$-$month.

The Hum first opies Department provides you with the following yearly history forthe average employee in the company:

$$ Vacation $(3$ weeks$)$

: Pat daidays $4100$

Paid holidays $(10$ days$)$

Jury duty $(1$ day$)$

a$.$ How many direct labor hours are available per month per person?

b$.$ If only one employee can be assigned to the project, what will be the duration of the effort, in months?

c$.$ If the customer wants the job completed within one year, how many employees should be