Confidence Interval for MEANS Enter Values in the Yellow Boxes Below Sample Size n Sample Mean x-bar (careful with rounding!) Population Standard Deviation o Confidence Level (click drop down) Margin of Error E (only enter if given) Z critical value Margin of Error Minimum Sample Size Confidence Interval for the Mean 74.4830028079585 <= µ <= 85.9769971920415 30 80.23 16.06 95% 1.96 5.74700 ΝΑ
Confidence Interval for MEANS Enter Values in the Yellow Boxes Below Sample Size n Sample Mean x-bar (careful with rounding!) Population Standard Deviation o Confidence Level (click drop down) Margin of Error E (only enter if given) Z critical value Margin of Error Minimum Sample Size Confidence Interval for the Mean 74.4830028079585 <= µ <= 85.9769971920415 30 80.23 16.06 95% 1.96 5.74700 ΝΑ
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
Using a quantitative variable of pounds lost in the first year after weight loss surgery, I have created 30 sample data values
- Do you agree with the margin of error, E, that was calculated? If yes, what is the margin of error and what does it tell you? If not, correct it showing the correct steps.
- Do you think that it is ever possible to use a sample to estimate a population parameter with 100% accuracy? Explain.
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