Head movement evaluations are important because disabled individuals may be able to operate communications aids using head motion. A paper reported the accompanying data on neck rotation (in degrees) for 14 subjects both in the dockwise direction (CL) and in the counterclockwise direction (CO). For purposes of this exercise, you can assume that the 14 subjects are representative of the population of adult Americans. Subject: Find the df. df- CL: CO: 1 2 3 4 5 6 9 10 11 12 13 14 57.6 35.7 54.5 56.8 51.1 70.8 77.3 51.6 54.7 63.6 59.2 59.2 55.8 38.4 60.2 52.7 47.2 65.6 71.4 48.8 53.1 66.3 59.8 47.5 64.5 34.8 44.8 52.1 60.2 LAUSE SALT 7 Based on these data, is it reasonable to conclude that mean neck rotation is greater in the clockwise direction than in the counterclockwise direction? Carry out a hypothesis test using a significance level of 0.01. (Use CL - #co) Find the test statistic. (Round your answer to two decimal places.) t- 8 Use technology to find the P-value. (Round your answer to four decimal places.) P-value- State your conclusion. O Reject H.. We do not have convincing evidence that mean neck rotation is greater in the clockwise direction than in the counterclockwise direction. O Fail to reject Ho. We do not have convincing evidence that mean neck rotation is greater in the clockwise direction than in the counterclockwise direction. O Reject H₂. We have convincing evidence that mean neck rotation is greater in the clockwise direction than in the counterclockwise direction. O Fail to reject H. We have convincing evidence that mean neck rotation is greater in the clockwise direction than in the counterclockwise direction.
Head movement evaluations are important because disabled individuals may be able to operate communications aids using head motion. A paper reported the accompanying data on neck rotation (in degrees) for 14 subjects both in the dockwise direction (CL) and in the counterclockwise direction (CO). For purposes of this exercise, you can assume that the 14 subjects are representative of the population of adult Americans. Subject: Find the df. df- CL: CO: 1 2 3 4 5 6 9 10 11 12 13 14 57.6 35.7 54.5 56.8 51.1 70.8 77.3 51.6 54.7 63.6 59.2 59.2 55.8 38.4 60.2 52.7 47.2 65.6 71.4 48.8 53.1 66.3 59.8 47.5 64.5 34.8 44.8 52.1 60.2 LAUSE SALT 7 Based on these data, is it reasonable to conclude that mean neck rotation is greater in the clockwise direction than in the counterclockwise direction? Carry out a hypothesis test using a significance level of 0.01. (Use CL - #co) Find the test statistic. (Round your answer to two decimal places.) t- 8 Use technology to find the P-value. (Round your answer to four decimal places.) P-value- State your conclusion. O Reject H.. We do not have convincing evidence that mean neck rotation is greater in the clockwise direction than in the counterclockwise direction. O Fail to reject Ho. We do not have convincing evidence that mean neck rotation is greater in the clockwise direction than in the counterclockwise direction. O Reject H₂. We have convincing evidence that mean neck rotation is greater in the clockwise direction than in the counterclockwise direction. O Fail to reject H. We have convincing evidence that mean neck rotation is greater in the clockwise direction than in the counterclockwise direction.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Transcribed Image Text:Head movement evaluations are important because disabled individuals may be able to operate communications aids using head motion. A paper reported the accompanying data on neck rotation (in degrees) for 14 subjects both in the clockwise direction (CL) and in the counterclockwise direction
(CO). For purposes of this exercise, you can assume that the 14 subjects are representative of the population of adult Americans.
1 2
3
4
5
6 7 8
10 11 12 13 14
57.6 35.7 54.5 56.8 51.1 70.8 77.3 51.6 54.7 63.6
59.2 59.2 55.8 38.4
44.8 52.1
52.1 60.2 52.7 47.2 65.6 71.4 48.8 53.1 66.3 59.8 47.5 64.5 34.8
Subject:
Find the df.
df -
CL:
CO:
USE SALT
Based on these data, is it reasonable to conclude that mean neck rotation is greater in the clockwise direction than in the counterclockwise direction? Carry out a hypothesis test using a significance level of 0.01. (Use CL - #co)
Find the test statistic. (Round your answer to two decimal places.)
t-
Use technology to find the P-value. (Round your answer to four decimal places.)
P-value-
State your conclusion.
O Reject H₂. We do not have convincing evidence that mean neck rotation is greater in the clockwise direction than in the counterclockwise direction.
O Fail to reject Ho. We do not have convincing evidence that mean neck rotation is greater in the clockwise direction than in the counterclockwise direction.
O Reject H₂. We have convincing evidence that mean neck rotation is greater in the clockwise direction than in the counterclockwise direction.
O Fail to reject H. We have convincing evidence that mean neck rotation is greater in the clockwise direction than in the counterclockwise direction.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps with 9 images
Recommended textbooks for you
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
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
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman