A researcher wants to estimate the average annual Jordanian per capita income in the range of plus and minus 50 dinars with a confidence degree of 95%, and the researcher knows through the study of family expenses and income conducted by the Jordanian Department of Statistics that the income distribution follows the normal distribution with a standard deviation of 450 dinars. What is the minimum sample size required to conduct another study?
A researcher wants to estimate the average annual Jordanian per capita income in the range of plus and minus 50 dinars with a confidence degree of 95%, and the researcher knows through the study of family expenses and income conducted by the Jordanian Department of Statistics that the income distribution follows the normal distribution with a standard deviation of 450 dinars. What is the minimum sample size required to conduct another study?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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A researcher wants to estimate the average annual Jordanian per capita income in the range of plus and minus 50 dinars with a confidence degree of 95%, and the researcher knows through the study of family expenses and income conducted by the Jordanian Department of Statistics that the income distribution follows the normal distribution with a standard deviation of 450 dinars. What is the minimum sample size required to conduct another study?
Transcribed Image Text:A researcher wants to estimate the average
annual Jordanian per capita income in
the range of plus and minus 50 dinars
with a confidence degree of 95%, and the
researcher knows through the study of
family expenses and income conducted by
the Jordanian Department of Statistics that
the income distribution follows the normal
distribution with a standard deviation of
450 dinars. What is the minimum sample
size required to conduct another study?
8:42 PM
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