Answer:
Iggy Wiggy T-shirts should order 6,829 units of T-shirt
Explanation:
Cost per T-shirt = $8.00
Selling Price per T-shirt = $25
Marginal Profit = 25 - 8 = $17
Marginal Loss when t-shirt is sold for $5 = $8 - $5 = $3
Mean = 6000 units
Standard deviation = 800 units
Using the News Vendor Model
Q = MP / MP + ML
Q = 17 / (17+3)
Q = 17 / 20
Q = 0.85
Using NORMINV in Ms excel
= NORMINV (probability, mean, standard deviation)
= NORMINV(0.85,6000,800)
= 6829.14 units
Thus, Iggy Wiggy T-shirts should order 6829 units of T-shirt.