Answered: Confidence intervals Several factors…

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 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, higher confidence means a
smaller margin of error.
b) For a specified confidence level, larger samples
provide smaller margins of error.
c) For a fixed margin of error, larger samples provide
greater confidence.
d) For a given confidence level, halving the margin of
error requires a sample twice as large.

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