A grocery store sells an average of 478 loaves of bread each week. Sales (X) are normally
Question:
A grocery store sells an average of 478 loaves of bread each week. Sales (X) are normally distributed with a standard deviation of 17.
(a) If a random sample of size n = 1 (week) is drawn, what is the probability that the X̅ value will exceed 495?
(b) If a random sample of size n = 4 (weeks) is drawn, what is the probability that the X value will exceed 495?
(c) Why does your response in part (a) differ from that in part (b)?
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Related Book For
Statistics For Business And Financial Economics
ISBN: 9781461458975
3rd Edition
Authors: Cheng Few Lee , John C Lee , Alice C Lee
Question Posted: