2061_10%20Day%2010_Working%20with%20Z-scores%20BB-1

2061_10%20Day%2010_Working%20with%20Z-scores%20BB-1 - Day...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Click to edit Master subtitle style 2/24/10 Day 10: Working with Z- Scores Why are Z-scores useful? What questions can we answer using Z-scores? Working through examples
Background image of page 1

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

View Full DocumentRight Arrow Icon
2/24/10 Why are Z-scores useful? Review: What is a Z-score? Review: If a Z-score is 1.45, that tells us that the value is: A. 1.45 times higher than the mean B. 1.45 standard deviations above the mean C. 1.45 units above the mean What makes a Z-score more meaningful than the distance
Background image of page 2
2/24/10 What questions can we What percentage of a distribution falls between a given value and the mean? What percentage of a distribution falls beyond a given value (between the value and the end of the distribution)? What percentage of a distribution falls between two given values?
Background image of page 3

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

View Full DocumentRight Arrow Icon
2/24/10 Statistics grades (example from Mean = 70.07, Mode = 70, Median = 70 Normal distribution Standard deviation = 10.27 Table 10.1 Final Grades in Social Statistics of 1,200 Students (1983-1993) Midpoint Score Frequency Bar Chart Freq. Cum. Freq.
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 20

2061_10%20Day%2010_Working%20with%20Z-scores%20BB-1 - Day...

This preview shows document pages 1 - 5. Sign up to view the full document.

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