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Which of the given statements is correct? Outliers can invalidate the z procedures, especially if the sample size is small. A confidence interval computed on data collected using a convenience sample will be valid as long as the sample size is large. The z procedures can be used with complex sampling schemes as long as the distribution of the variable in the population is Normal. The z test only works well if the variable in the population has a Normal distribution, even with large samples.

Which of the given statements is correct? Outliers can invalidate the z procedures, especially if the sample size is small. A confidence interval computed on data collected using a convenience sample will be valid as long as the sample size is large. The z procedures can be used with complex sampling schemes as long as the distribution of the variable in the population is Normal. The z test only works well if the variable in the population has a Normal distribution, even with large samples.

MATLAB: An Introduction with Applications
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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Which of the given statements is correct? Outliers can invalidate the z procedures, especially if the sample size is small. A confidence interval computed on data collected using a convenience sample will be valid as long as the sample size is large. The z procedures can be used with complex sampling schemes as long as the distribution of the variable in the population is Normal. The z test only works well if the variable in the population has a Normal distribution, even with large samples.
Transcribed Image Text:Which of the given statements is correct? Outliers can invalidate the z procedures, especially if the sample size is small. A confidence interval computed on data collected using a convenience sample will be valid as long as the sample size is large. The z procedures can be used with complex sampling schemes as long as the distribution of the variable in the population is Normal. The z test only works well if the variable in the population has a Normal distribution, even with large samples.
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