Suppose that the researchers at the hospital from Problem 3.17 collect a new set of data, this
Question:
Suppose that the researchers at the hospital from Problem 3.17 collect a new set of data, this time for 20 younger patients.
Their findings are stored in the file BBS_Younger :
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 more than 40.” Based on the results of (a) through (c), evaluate the accuracy of this statement.
Problem 3.17
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 scored 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 file BBS_Older contains data for 20 older patients at a hospital:
Step by Step Answer:
Public Finance An International Perspective
ISBN: 9789814365048
1st Edition
Authors: Joshua E. Greene