Homework Help is Here – Start Your Trial Now!
Math
Statistics
civil engineer is verifying that the delivered steel reinforcing bars (rebar) are all within the required lengths. The rebar has a mean length of 3 feet and a sample standard deviation of 0.3 inches. The data follows a normal distribution.   a. What percentage of rebar would fall between 3.025 feet and 2.975 feet? What range of lengths in feet would include 99% of the data?   b. If the design specification states that the diameters must be longer than 2.95 feet, what percent of rebar falls outside that range? Draw a number line diagram comparing the design specification and expected variability.   Please step by step answer.

civil engineer is verifying that the delivered steel reinforcing bars (rebar) are all within the required lengths. The rebar has a mean length of 3 feet and a sample standard deviation of 0.3 inches. The data follows a normal distribution.   a. What percentage of rebar would fall between 3.025 feet and 2.975 feet? What range of lengths in feet would include 99% of the data?   b. If the design specification states that the diameters must be longer than 2.95 feet, what percent of rebar falls outside that range? Draw a number line diagram comparing the design specification and expected variability.   Please step by step answer.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question

civil engineer is verifying that the delivered steel reinforcing bars (rebar) are all within the required lengths. The rebar has a mean length of 3 feet and a sample standard deviation of 0.3 inches. The data follows a normal distribution.

 

a. What percentage of rebar would fall between 3.025 feet and 2.975 feet? What range of lengths in feet would include 99% of the data?

 

b. If the design specification states that the diameters must be longer than 2.95 feet, what percent of rebar falls outside that range? Draw a number line diagram comparing the design specification and expected variability.

 

Please step by step answer. 

Expert Solution
steps

Step by step

Solved in 4 steps with 20 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS