Sample Size The equation for determining the sample size n = ( z c σ E ) 2 can be obtained by solving the equation for the margin of error E = z c σ n for n. Show that this is true and justify each step.
Sample Size The equation for determining the sample size n = ( z c σ E ) 2 can be obtained by solving the equation for the margin of error E = z c σ n for n. Show that this is true and justify each step.
Solution Summary: The author explains that the equation for sample size n=(z_csigma E)2 can be obtained by solving it for the margin of error
Sample Size The equation for determining the sample size
n
=
(
z
c
σ
E
)
2
can be obtained by solving the equation for the margin of error
E
=
z
c
σ
n
for n. Show that this is true and justify each step.
Definition Definition Number of subjects or observations included in a study. A large sample size typically provides more reliable results and better representation of the population. As sample size and width of confidence interval are inversely related, if the sample size is increased, the width of the confidence interval decreases.
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Introduction to experimental design and analysis of variance (ANOVA); Author: Dr. Bharatendra Rai;https://www.youtube.com/watch?v=vSFo1MwLoxU;License: Standard YouTube License, CC-BY