To find the mean, also known as the average, we need to add up all the sales and divide by the total number of sales:
Mean = (Total sales) / (Number of sales)
Total sales = $600 + $1,500 + $800 + $1,300 + $800 = $5,000
Number of sales = 5
Mean = $5,000 / 5 = $1,000
Therefore, the mean of the director's sales for the week is $1,000.