PSYC 354 Homework 5

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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