Math 101 Elementary Statistics — Spring 2022

Ch 21 — cont’d (Two-sample confidence interval)

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We have a (relatively) short video today!

We will continue with Ch 21. Our focus is on constructing confidence intervals to estimate difference between two population means.

 

Instructions

  • There are 2 confidence interval problems in this lab work (not from the book).
    • For the 2nd question, follow the format below for the conclusion:

We are 99% confident that the population mean ______ for _____

is smaller than that of _____

               by an amount that might be as small as ………

or is larger than that of _____

              by an amount that might be as large as…….. .

 

  • The video explains the concept and shows you how to do the lab work:

Ch 21 Two-sample confidence interval

  • Submit your lab work as one single PDF file to Canvas before the due date.

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