The instructor takes a random sample of size from the population data and obtains the following sample data:x405385495385555470 7The variance of sample means is:a4784.17 b8085.10 c1347.52 d1418.44

To find : Variance of sample given.

Answered: The variance of sample means is:

Business

Economics

The variance of sample means is:

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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Question

The instructor takes a random sample of size from the population data and obtains the following sample data:

405

385

495

385

555

470

7	The variance of sample means is:
a	4784.17
b	8085.10
c	1347.52
d	1418.44

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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