This preview shows pages 1–4. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: Practice Using Z Scores What information is provided by the sign (+/) of a zscore? What information is provided by the value of the zscore? o e.g. z = 2.5; z=+1.4 A distribution has a standard deviation of sigma = 6. Describe the location of each of the following zscores in terms of relative position to the mean. For example, z = +1.00 is a location that is 6 points above the mean. o z = +2.0 o z = +.50 o z = 2.0 o z = .50 For a population of scores with mu = 50 and sigma = 8 o Find the zscore for each of the following X values. X = 54 X = 62 X = 52 X = 42 X = 48 X = 34 For the same population find the x score that corresponds to each of the following z scores: o Z = 1.0 o Z = .75 o Z = 1.50 o Z = .25 o Z = 1.5 Find the zscore corresponding to a score of X = 60 for each of the following distributions: o Mean = 50 and s = 10 o Mean = 50 and s =20 o Mean = 50 and s = 5 o Mean = 50 and s = 2 What is the zscore that o separates the 10 % of scores from the bottom 90%?...
View
Full
Document
 Spring '08
 MCCLELLAND

Click to edit the document details