MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Parameters & Statistics
Example:
Decide whether the numerical value describes a population
parameter or a sample statistic.
a.) A recent survey of a sample of 450 college students
reported that the average weekly income for students
is $325.
Because the average of $325 is based on a sample,
this is a sample statistic.
b.) The average weekly income for all students
$405.
Because the average of $405 is based on a population,
this is a population parameter.
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Transcribed Image Text:Parameters & Statistics Example: Decide whether the numerical value describes a population parameter or a sample statistic. a.) A recent survey of a sample of 450 college students reported that the average weekly income for students is $325. Because the average of $325 is based on a sample, this is a sample statistic. b.) The average weekly income for all students $405. Because the average of $405 is based on a population, this is a population parameter.
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