Homework Help is Here – Start Your Trial Now!
Math
Statistics
4. The Berg Balance Scale (BBS), named after its developer Katherine Berg, is a popular clinical test of a person's static and dynamic balance abilities. It is measured on a scale of 0 to 56; the higher the value, the better the score. The cut-off score is 45, which means that a score less than 45 indicates a greater risk of falling. The data collected by a group of researchers for 20 older patients at a hospital are: 43 48 40 42 9 32 38 49 32 34 46 40 40 33 35 40 39 40 34 39 a. Compute the mean and median. b. Compute the variance, standard deviation, range, coefficient of variation, and Z scores. Are there any outliers? Explain. c. Are the data skewed? If so, how? d. A physiotherapist meets with one of the researchers who gathered this data and asks what BBS values she can expect in case of her older patients. The researcher replies, "Almost certainly less than 40." Based on the results of (a) through (c), evaluate the accuracy of this statement.

4. The Berg Balance Scale (BBS), named after its developer Katherine Berg, is a popular clinical test of a person's static and dynamic balance abilities. It is measured on a scale of 0 to 56; the higher the value, the better the score. The cut-off score is 45, which means that a score less than 45 indicates a greater risk of falling. The data collected by a group of researchers for 20 older patients at a hospital are: 43 48 40 42 9 32 38 49 32 34 46 40 40 33 35 40 39 40 34 39 a. Compute the mean and median. b. Compute the variance, standard deviation, range, coefficient of variation, and Z scores. Are there any outliers? Explain. c. Are the data skewed? If so, how? d. A physiotherapist meets with one of the researchers who gathered this data and asks what BBS values she can expect in case of her older patients. The researcher replies, "Almost certainly less than 40." Based on the results of (a) through (c), evaluate the accuracy of this statement.

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
1 4. The Berg Balance Scale (BBS), named after its developer Katherine Berg, is a popular clinical test of a person's static and dynamic balance abilities. It is measured on a scale of 0 to 56; the higher the value, the better the score. The cut-off score is 45, which means that a score less than 45 indicates a greater risk of falling. The data collected by a group of researchers for 20 older patients at a hospital are: 43 48 40 32 42 9 nited States) 38 49 II a. Compute the mean and median. b. Compute the variance, standard deviation, range, coefficient of variation, and Z scores. Are there any outliers? Explain. c. Are the data skewed? If so, how? 32 34 46 33 40 40 35 40 d. A physiotherapist meets with one of the researchers who gathered this data and asks what BBS values she can expect in case of her older patients. The researcher replies, "Almost certainly less than 40." Based on the results of (a) through (c), evaluate the accuracy of this statement. 39 34 40 39 H A Go BN 103°F Windy
Transcribed Image Text:1 4. The Berg Balance Scale (BBS), named after its developer Katherine Berg, is a popular clinical test of a person's static and dynamic balance abilities. It is measured on a scale of 0 to 56; the higher the value, the better the score. The cut-off score is 45, which means that a score less than 45 indicates a greater risk of falling. The data collected by a group of researchers for 20 older patients at a hospital are: 43 48 40 32 42 9 nited States) 38 49 II a. Compute the mean and median. b. Compute the variance, standard deviation, range, coefficient of variation, and Z scores. Are there any outliers? Explain. c. Are the data skewed? If so, how? 32 34 46 33 40 40 35 40 d. A physiotherapist meets with one of the researchers who gathered this data and asks what BBS values she can expect in case of her older patients. The researcher replies, "Almost certainly less than 40." Based on the results of (a) through (c), evaluate the accuracy of this statement. 39 34 40 39 H A Go BN 103°F Windy
Expert Solution
steps

Step by step

Solved in 6 steps with 19 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