Instructions Solve the given problem. A researcher is interested in estimating the average monthly salary of bank managers in NCR. He wants to be 90% confident that his estimate is correct. If the standard deviation is 8,500, how large a sample is needed to get che desired information and to be accurate within P1,150?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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SAMPLE SIZE DETERMINATION
Instructions
Instructions
Solve the given problem.
A researcher is interested in estimating the
average monthly salary of bank managers in
NCR. He wants to be 90% confident that his
estimate is correct. If the standard deviation is
P8,500, how large a sample is needed to get
the desired information and to be accurate
within P1,150?
Transcribed Image Text:SAMPLE SIZE DETERMINATION Instructions Instructions Solve the given problem. A researcher is interested in estimating the average monthly salary of bank managers in NCR. He wants to be 90% confident that his estimate is correct. If the standard deviation is P8,500, how large a sample is needed to get the desired information and to be accurate within P1,150?
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