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he middle interval that captures 95% of sample proportions is,

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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Question

On a freeway

85%

of vehicles violate the speed limit (π = 0.85).

From the population of all vehicles on the freeway, you clock repeated random samples of size

400

vehicle.

30	The middle interval that captures 95% of sample proportions is,

a	0.825	0.875
b	0.815	0.885
c	0.801	0.899
d	0.781	0.919

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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