☺ a psychologist developed a test of spathial recognition and ske Wants to estimnte the mean scoreof make airline pilots. Prier knowhed ge indiabes tut o= 21.2. How large should her sample be if she wants to be 90% Confilent that the sample mean s within 2 points of the population Meak ?

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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☺ a psychologist developed a test of spatial recognition and she
Wants to estimate the mean score of make airline pilots. Prior
knowledge indicates thut o= 21.2. How large should her sample be
if she wants to be 90% Confident that the sample mean is
within 2 points of the popu lation mean?
4.
Transcribed Image Text:☺ a psychologist developed a test of spatial recognition and she Wants to estimate the mean score of make airline pilots. Prior knowledge indicates thut o= 21.2. How large should her sample be if she wants to be 90% Confident that the sample mean is within 2 points of the popu lation mean? 4.
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