Engineering Economy 7th Edition by Leland Blank ,Anthony Tarquin

Exercise 33

A mini wind tunnel for calibrating vane or hotwire anemometers cost $3750 in 2002 when the M S equipment index value was 1104.2. If the index value is now 1620.6, estimate the cost of a tunnel twice as large. The cost-capacity equation exponent is 0.89.