a. Calculate the variance of the scores for each woman. b. Are the scores for the younger woman more con- sistent (less variable)? Younger Older 8. 7. 6. 6 8. 7. 8. 8. 8 5 7876
a. Calculate the variance of the scores for each woman. b. Are the scores for the younger woman more con- sistent (less variable)? Younger Older 8. 7. 6. 6 8. 7. 8. 8. 8 5 7876
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
![257
24. In the previous problem we noted that the differ-
ences in cognitive skills tend to be bigger among
older people than among younger people. These
differences are often called diversity. Similarly, the
differences in performance from trial to trial for the
same person are often called consistency. Research
in this area suggests that consistency of perfor-
mance seems to decline as people age. A study by
Wegesin and Stern (2004) found lower consistency
(more variability) in the memory performance
scores for older women than for younger women.
he following data represent memory scores
obtained for two women, one older and one
younger, over a series of memory trials.
a. Calculate the variance of the scores for each
Woman.
b. Are the scores for the younger woman more con-
sistent (less variable)?
Older
8.
9
9
8.
8.
8.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4470adb1-eab1-4eb3-8960-9e0bfc23272e%2F6dc12ba4-e541-4bea-a36b-92fc15f4f5ec%2Fgpr0m5l9.jpeg&w=3840&q=75)
Transcribed Image Text:257
24. In the previous problem we noted that the differ-
ences in cognitive skills tend to be bigger among
older people than among younger people. These
differences are often called diversity. Similarly, the
differences in performance from trial to trial for the
same person are often called consistency. Research
in this area suggests that consistency of perfor-
mance seems to decline as people age. A study by
Wegesin and Stern (2004) found lower consistency
(more variability) in the memory performance
scores for older women than for younger women.
he following data represent memory scores
obtained for two women, one older and one
younger, over a series of memory trials.
a. Calculate the variance of the scores for each
Woman.
b. Are the scores for the younger woman more con-
sistent (less variable)?
Older
8.
9
9
8.
8.
8.
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