The following information is provided.

Single$-$factor productivity assumptions:

# of workers $=120(60$ dedicated pickers, $30$ material handlers, $30$ crew leaders and utility associates$)$

Pay rate $=60$ at $$12/$hour and $60$ at $$24/$hour

# of picks $=$ avg. $80$ picks per hour per worker

Multiple$-$factor productivity assumptions:

# of workers $=120$

Pay rate $=60$ at $$12/$hour and $60$ at $$24/$hour

# of picks $=$ avg. $80$ picks per hour per worker

Errors per hour$/$chargeback $($return freight and reship cost$)=10\%$ error rate per hour and the chargeback calculation is $$8$ per picked error.

$($Note: $10\%\backslash$times $80$ picks $\backslash$times $$8$ per picked error $\backslash$times $8$ hours per shift $\backslash$times $20$ shifts per month $\backslash$times $60$ pickers $=$ $$614,400$ per month$)$

Damage and theft $=$ $$7,000/$month

Single$-$factor productivity assumptions with robots:

# of workers $=60$

Pay rate $=$ avg. $$31/$hour

# of picks $=$ avg. $380$ picks per hour per worker

Multiple$-$factor productivity assumptions with robots:

# of workers $=60$

Pay rate $=$ avg. $$31/$hour

# of picks $=$ avg. $380$ picks per hour per worker

Errors per hour$/$chargeback $=0$ errors

Lease per robot $=$ $$2,400/$month

# of robots $=35$ Calculate productivity for the private warehouse comparing existing productivity and productivity if robots were leased. Round your answers to two decimal places.

Without robots With robots

Single$-$factor productivity $($picks per $$)$ fill in the blank $2$

fill in the blank $3$

Overall multiple$-$factor productivity $($picks per $$)$ fill in the blank $4$

fill in the blank $5$