11-7-08 - Psychology 206 Class Notes 11/7/08 Went from...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Psychology 206 – Class Notes – 11/7/08 Went from Z-scores to correlation …going back to Z scores to hypothesis testing Standard Normal Curve Mean is 0 Std. dev. Is 1 Area under the curve – proportion of scores Area under the curve (100) = percent of scores Area under the curve = probability of a single score A puzzle IQ is normally distributed with µ=100 and (pop. Std. dev. = 16) A class of N=28 children take an IQ test and obtain a M=106.3 Evidence of “foul play”? (Is this sample beyond the acceptable range?) Did the sample come from the general population? In other words, how likely is it that a sample of N=28 scores would have a mean of 106.3 when the µ=100 and (pop. Std. dev = 16)? Is this sample Likely to be part of the general population? Or, Is it unlikely to be part of the general population? Is there evidence of foul play?
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
WE HAVE A FORMAL WAY TO DECIDE!
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 06/03/2009 for the course PSYCH 206 taught by Professor Kenney-benson during the Fall '07 term at Allegheny.

Page1 / 3

11-7-08 - Psychology 206 Class Notes 11/7/08 Went from...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online