Answer:
18
Step-by-step explanation:
90% of 20 is 18
Answer:
a. 13.7084 oz.
Step-by-step explanation:
Formula for Lower Control Limit =
(LCL = x-bar - A²R-bar)
x - bar = 14 oz
A2 = 0.729
R - bar = 0.4 oz
= 14 - 0.729 × 0.4
= 14 - 0.2916
= 13.7084oz
A fraction is in it's simplest form if both of the numerator and denominator are not divisible by a number.
