Which of the following statements best describes the % confidence that the sample intervals in relation to the unknown population mean? Could we say that these samples are a good representative of the population mean? What other characteristics are evident in the samples? 10 8. 3 2 Sample 5.
Which of the following statements best describes the % confidence that the sample intervals in relation to the unknown population mean? Could we say that these samples are a good representative of the population mean? What other characteristics are evident in the samples? 10 8. 3 2 Sample 5.
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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Transcribed Image Text:O a. Approximately 95% confident that the population mean is within the sample intervals, thus it's probable that this is a good representative of
the population. All samples appear to have equal intervals implying equal standard deviation and sample sizes
O b. There is about 90% confidence that the sample intervals contain the value of the unknown population mean. And this would imply that the
sampling distribution is a good representative of the population. All samples appear to have equal intervals thus their standard errors are
equal
Oc We are about 90% confident that the sample mean is within a certain distance of the unknown population mean. Increasing the sample sizes
for all samples would decrease this interval and thus our % confidence will also decrease. However, this will improve the precision of
estimating the population
Od. We could say that we are 99% confident that the sample intervals contain the value of the unknown population mean. This is a good
representation of the unknown population mean. It's apparent that sample#4's interval doesn't contain the population mean
Transcribed Image Text:Which of the following statements best describes the % confidence that the sample intervals in
relation to the unknown population mean? Could we say that these samples are a good representative
of the population mean? What other characteristics are evident in the samples?
8.
3
Sample
10
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