3/30/2008
Unit 2
- Stat 201 - Ramón V. León
1
Statistics 201: Introduction to Statistics
Ramón V. León
Unit 2: Inference for Single
Samples

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3/30/2008
Unit 2
- Stat 201 - Ramón V. León
2
Applications:
•
Monitor the mean of a manufacturing process to
determine if the process is under control
•
Evaluate the precision of a laboratory instrument
measured by the variance of its readings
•
Prediction intervals which is a method for
estimating future observations from a population.
By using the central limit theorem (CLT), inference procedures
for the mean of a normal population can be extended to the
mean of a non-normal population when a large sample is available
Inference About the Mean and Variance of a
Normal Population