Probability calculation using Z score
Not what you're looking for?
Data from a National Health Survey show that men's average weight is normally distributed with a mean of 170 pounds and a standard deviation of 30 pounds.
A. If A man is chosen at random, what is the probability that his weight is greater than 180 pounds?
B. If 100 men are randomly selected, what is the probability that THEIR MEAN WEIGHT is greater than 180 pounds?
C. What is the probability that MEAN WEIGHT OF THE 100 MEN is less than 160 pounds?
Purchase this Solution
Solution Summary
Step by step method for computing Probability calculation using Z score is given in the answer.
Purchase this Solution
Free BrainMass Quizzes
Terms and Definitions for Statistics
This quiz covers basic terms and definitions of statistics.
Measures of Central Tendency
Tests knowledge of the three main measures of central tendency, including some simple calculation questions.
Know Your Statistical Concepts
Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.
Measures of Central Tendency
This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.