Answered: Confidence intervals, again Several…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Confidence intervals, again Several factors are involved
in the creation of a confidence interval. Among them are
the sample size, the level of confidence, and the margin
of error. Which statements are true?
a) For a given sample size, reducing the margin of error
will mean lower confidence.
b) For a certain confidence level, you can get a smaller
margin of error by selecting a bigger sample.
c) For a fixed margin of error, smaller samples will mean
lower confidence.
d) For a given confidence level, a sample 9 times as large
will make a margin of error one third as big.

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