Six cookies were placed next to each other and the total diameter
was measured. They were rotated by 90 and measured three
more times. The average of four measurements was divided by six
to calculate the average diameter of a cookie. To measure the
height, six cookies were stacked, measured, restacked in different
order, and measured again. The average cookie height was the
mean of three readings divided by six. The spread ratio was
calculated by dividing the diameter by the height. Nine measurements
for each replicate were taken.