Population mean on quantitative portion of GRE between 1994 and 1997 was 558 (o =139). Select sample
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Population mean on quantitative portion of GRE between 1994 and 1997 was 558 (o =139). Select sample of 100 participants. Record the sample mean to equal 585.
1. Conduct a two-tailed (nondirectional) z test for whether or not we will retain the population mean stated by the null at a 0.05 level of significance, using zcrit and zobt.
2. Compute Cohen's d.
Related Book For
Introductory Statistics Exploring the World Through Data
ISBN: 978-0321978271
2nd edition
Authors: Robert Gould, Colleen Ryan
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