Suppose we want to estimate the true mean length of hospital stays. How large a sample size do we need to estimate the true mean length of hospital stays to within ±0.06 with 95% confidence? Suppose a prior study indicates that s=0.52s=0.52. a. 70 b. 300 c. 301 d. 1201 e. 1202

Suppose we want to estimate the true mean length of hospital stays. How large a sample size do we need to estimate the true mean length of hospital stays to within ±0.06 with 95% confidence? Suppose a prior study indicates that s=0.52s=0.52. a. 70 b. 300 c. 301 d. 1201 e. 1202

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

a. 70

b. 300

c. 301

d. 1201

e. 1202

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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