A consumer price analyst claims that prices for liquid crystal display (LCD) computer monitors are normally distributed,
Question:
A consumer price analyst claims that prices for liquid crystal display (LCD) computer monitors are normally distributed, with a mean of $190 and a standard deviation of $48. What is the probability that a randomly selected LCD computer monitor costs less than $200? You randomly select 10 LCD computer monitors. What is the probability that their mean cost is less than $200? Compare these two probabilities.
a. Find the z-scores that correspond to x and x̅.
b. Use the Standard Normal Table to find the probability associated with each z-score.
c. Compare the probabilities.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Related Book For
Elementary Statistics Picturing The World
ISBN: 9780321911216
6th Edition
Authors: Ron Larson, Betsy Farber
Question Posted: