In a random sample of size 11, N(mu, phi) population, obtain 90% confidence interval for standard deviation (phi) if the sample variance s^2 = 28. 3.19 < std. dev. < 8.43 3.34 < std. dev. < 8.19 3.43 < std. dev. < 8.91 3.91 < std. dev. < 8.43

In a random sample of size 11, N(mu, phi) population, obtain 90% confidence interval for standard deviation (phi) if the sample variance s^2 = 28. 3.19 < std. dev. < 8.43 3.34 < std. dev. < 8.19 3.43 < std. dev. < 8.91 3.91 < std. dev. < 8.43

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section: Chapter Questions

Problem 11MCQ

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

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In a random sample of size 11, N(mu, phi) population, obtain 90% confidence interval for standard deviation (phi) if the sample variance s^2 = 28.

		3.19 < std. dev. < 8.43
		3.34 < std. dev. < 8.19
		3.43 < std. dev. < 8.91
		3.91 < std. dev. < 8.43

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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