Estimating a Difference Score

Estimating a Difference Score - Estimating a Difference...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Estimating a Difference Score Imagine that instead of estimating a single population mean μ, you wanted to estimate the difference  between two population means μ 1  and μ 2 , such as the difference between the mean weights of two  football teams. The statistic  has a sampling distribution just as the individual means do, and  the rules of statistical inference can be used to calculate either a point estimate or a confidence  interval for the difference between the two population means.  Suppose you wanted to know which was greater, the mean weight of Landers College's football team  or the mean weight of Ingram College's team. You already have a point estimate of 198 pounds for  Landers's team. Suppose that you draw a random sample of players from Ingram's team, and the 
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.
Ask a homework question - tutors are online