Answer:
$0.333
Explanation:
Given :
Price per pound = $6.71
Accuracy should be within 1/20 pound
Weight of Purchase = 1/4 pound
Cost of purchase = $1.68
Since accuracy is within 1/20 pound ;
The weight of purchase will be within :
(1/4 - 1/20 ; 1/4 + 1/20)
(0.2 ; 0.3)
The weight of purchase would be within (0.2 ; 0.3) including factoring in the accuracy level.
Price per pound = $6.71
If weight is 0.2 pounds ; ($6.71 * 0.2) = 1.342
If weight is 0.3 pounds ; ($6.71 * 0.3) = 2.013
Difference :
$(2.013 - 1.68) = $0.333
Owing to scale error, Jed might have been under charged or overcharged an amount of $0.333