Homework Help is Here – Start Your Trial Now!
Math
Statistics
A lumber company is making boards that are 2781 millimeters tall. If the boards are too long they must be trimmed, and if they are too short they cannot be used. A sample of 14 boards is made, and it is found that they have a mean of 2784.3 millimeters with a standard deviation of 13. Is there evidence at the 0.05 level that the boards are too long and need to be trimmed? State the null and alternative hypotheses for the above scenario.

A lumber company is making boards that are 2781 millimeters tall. If the boards are too long they must be trimmed, and if they are too short they cannot be used. A sample of 14 boards is made, and it is found that they have a mean of 2784.3 millimeters with a standard deviation of 13. Is there evidence at the 0.05 level that the boards are too long and need to be trimmed? State the null and alternative hypotheses for the above scenario.

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

A lumber company is making boards that are 2781 millimeters tall.  If the boards are too long they must be trimmed, and if they are too short they cannot be used.  A  sample of 14 boards is made, and it is found that they have a mean of 2784.3 millimeters with a standard deviation of 13.  Is there evidence at the 0.05 level that the boards are too long and need to be trimmed?

State the null and alternative hypotheses for the above scenario.

 

Expert Solution
steps

Step by step

Solved in 3 steps

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