Hi everyone! Read through the material below, watch the videos, work on the Excel lecture and follow up with me if you have questions.

 

Learning Outcomes.

  • Estimate statistical parameters (mean).

Topic. This lesson covers: Estimating Population Means

WeBWorK. Set 8.1

Excel Lecture #20Download
Lecture-20-with-solsDownload

Videos

Confidence Intervals for Population Means

The Applied View

Watch the video Confidence Intervals.

  1. Why is a single blood pressure reading not sufficient if we want to estimate a personā€™s average blood pressure?
  2. What are the two parts of any confidence interval?
  3. What assumptions need to be checked before computing a confidence interval?
  4. In plain language, what does ā€œ95% confidenceā€ mean?