Assume the average weight for men in the U.S. is 195 lbs and the standard deviation is 30 lbs. 5. Find the percentage of men who weigh between 170 and 220 Ibs. Label the horizontal axis and shade the curve accordingly. 195 30 225 301bs 130 135 IL5 19525 245275 6. Find the percentage of men who weigh over 170 Ibs. Label the horizontal axis and shade the curve accordingly. 5. 7. Find the z-score that has 75% of the area to its left. Label the horizontal axis and shade the curve accordingly. 8. Using the z-score you found in the last problem, the z-score formula, and a little algebra, find the weight in which 75% of the men are below it and 25% of the men are above it. (This is called the 75 percentile for men's weight).
Assume the average weight for men in the U.S. is 195 lbs and the standard deviation is 30 lbs. 5. Find the percentage of men who weigh between 170 and 220 Ibs. Label the horizontal axis and shade the curve accordingly. 195 30 225 301bs 130 135 IL5 19525 245275 6. Find the percentage of men who weigh over 170 Ibs. Label the horizontal axis and shade the curve accordingly. 5. 7. Find the z-score that has 75% of the area to its left. Label the horizontal axis and shade the curve accordingly. 8. Using the z-score you found in the last problem, the z-score formula, and a little algebra, find the weight in which 75% of the men are below it and 25% of the men are above it. (This is called the 75 percentile for men's weight).
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Assume the average weight for men in the U.S. is 195 lbs and the standard deviation is 30 lbs.
5. Find the percentage of men who weigh between 170 and 220 Ibs. Label the horizontal axis and
shade the curve accordingly.
195
30
225
301bs
130 135 IL5 19525 245275
6. Find the percentage of men who weigh over 170 Ibs. Label the horizontal axis and shade the curve
accordingly.
5.
7. Find the z-score that has 75% of the area to its left. Label the horizontal axis and shade the curve
accordingly.
8. Using the z-score you found in the last problem, the z-score formula, and a little algebra, find the
weight in which 75% of the men are below it and 25% of the men are above it. (This is called the 75
percentile for men's weight).
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