Confidence Interval

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Category: Education

Presentation Description

This lecture introduces the concept of confidence intervals for means.

Presentation Transcript

Inference:

Inference Farrokh Alemi Ph.D.

Point Estimates

Point Estimates Vary:

Point Estimates Vary

Point Estimates Vary:

Point Estimates Vary

Point Estimates Vary:

Point Estimates Vary

Point Estimates Vary:

Point Estimates Vary

Point Estimates Vary:

Point Estimates Vary

Point Estimates Vary:

Point Estimates Vary

Point Estimates Vary:

Point Estimates Vary

Point Estimates Vary:

Point Estimates Vary

Standard Error of Observations:

Standard Error of Observations

Standard Error of Sample Mean:

Standard Error of Sample Mean

Standard Error of Sample Mean:

Standard Error of Sample Mean

Standard Error of Sample Mean:

Standard Error of Sample Mean

Standard Error of Sample Mean:

Standard Error of Sample Mean

Standard Error of Sample Mean:

Standard Error of Sample Mean

Standard Error of Sample Mean:

Standard Error of Sample Mean

Confidence Interval:

Confidence Interval

Confidence Interval:

Confidence Interval

Confidence Interval:

Confidence Interval

Confidence Interval:

Confidence Interval

Confidence Interval:

Confidence Interval Mean of the Population

Confidence Interval:

Confidence Interval

Percent of Observations:

Approximate Percent of Observations

Near Normal Distribution:

Near Normal Distribution

Percent of Observations:

Percent of Observations

Percent of Observations:

Percent of Observations

Percent of Observations:

Percent of Observations

Percent of Observations:

Percent of Observations

95% Confidence Interval:

95% Confidence Interval

Mean of Sample Observations:

Mean of Sample Observations

Z Parameter

Standard Error of Mean:

Standard Error of Mean

Margin of Error

Interpretation of Interval:

We are XX% confident that the population parameter is between... Interpretation of Interval

Take Home Lesson:

Confidence Interval provides a range of values that contain the true mean x% of time Take Home Lesson

Do One:

What is the 95% confidence interval for mean of a sample with following 4 observations: 50, 55, 50 and 40. What assumptions you have made. Do One 