The Analysis of Biological Data
2nd Edition
ISBN: 9781936221486
Author: Michael C. Whitlock, Dolph Schluter
Publisher: W. H. Freeman
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Question
Chapter 4, Problem 1PP
a)
To determine
To find standard deviation of given data.
a)
Expert Solution
Answer to Problem 1PP
The standard deviation is 15.95
Explanation of Solution
Given:
Data is,
112, 128, 108, 129, 125, 153, 155, 132, 137
Formula:
Calculation:
Using formula,
b)
To determine
To find
b)
Expert Solution
Answer to Problem 1PP
The sample size is 9.
Explanation of Solution
Given:
Data is,
112, 128, 108, 129, 125, 153, 155, 132, 137
Mean = 131.0 mm Hg and the variance = 254.5
Calculation:
The sample size is a count of selected sample data values.
Therefore, here count is 9 hence sample size is n = 9.
c)
To determine
To find the standard error of the mean
c)
Expert Solution
Answer to Problem 1PP
The standard error of the mean = 5.32
Explanation of Solution
Given:
Data is,
112, 128, 108, 129, 125, 153, 155, 132, 137
Mean = 131.0 mm Hg and the variance = 254.5
Standard deviation s = 15.95 and Sample size = n = 9
Formula:
Calculation:
Using formula,
d)
To determine
To find the approximate 95% confidence interval for mean
d)
Expert Solution
Answer to Problem 1PP
Lower limit = 120.4 mm Hg and upper limit = 141.6 mm Hg
Explanation of Solution
Given:
Data is,
112, 128, 108, 129, 125, 153, 155, 132, 137
Mean = 131.0 mm Hg and the variance = 254.5
Standard deviation s = 15.95 and Sample size = n = 9
Standard error = SE = 5.32
Formula:
Calculation:
2 SE rule of thumb for approximate 95% confidence interval for mean is,
Population mean will be within
Therefore,
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The Analysis of Biological Data
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