Confidence Intervals (Estimation)

The following elements are essential  for finding confidence intervals:

1.  Critical Number

2. Point Estimate

3. Standard Error

 

 

 

Confidence Intervals for a Normal Distribution (with sample size (n) greater than or equal to 30)

Population Mean

Population Proportion

 

Normal Distribution Table

Normal Distribution Table

Practice Problems for Confidence Intervals

Population Mean/Proportion

 

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