PSYC 354
Homework 5
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Z-Scores
Questions 1–9
Part I: Concepts
These questions are based on the Nolan and Heinzen reading and end-of-chapter questions.
What are always the mean and
standard
deviation of the z-distribution?
(2 pts)
2) Define the central limit theorem. (1
pt)
3)
Fill in the blanks (1
pt): A z-score
is
based on a distribution of equally likely events, while
a z-
statistic is
based
on a distribution
of sample percentage
or average.
Part I: Questions 4-8
Module 5 Lesson 21 Exercise File 1
Part II:
SPSS Analysis
Open the
“Lesson 21 Exercise File 1” document (found in the course’s Assignment Instructions folder) in order to complete these exercises.
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