Question

Intravenous fluid bags are filled by an automated filling machine. Assume that the fill volumes of the bags are independent, normal random variables with a standard deviation of 0.08 fluid ounces. (a)What is the standard deviation of the average fill volume of 22 bags

Answer 1

Answer:

0.017

Step-by-step explanation:

Given that:

Population standard deviation (σ) = 0.08

Standard deviation of the average fill volume of 22 bags :

The standard deviation of sample means = standard error ; defined as ;

SE = σ / √n

SE = 0.08 / √22

SE = 0.08 / 4.6904

SE = 0.0170560

SE = 0.017