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ED7864 Capella z Scores, Type I and II Errors case studies

ED7864 Capella z Scores, Type I and II Errors case studies

z Scores, Type I and II Errors, Hypothesis Testing

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Unit 4 Assignment 1

1. z scores in SPSS.

2. Case studies of Type I and Type II errors.

3. Case studies of null hypothesis testing.

Additional notes:

Section 1: z Scores in SPSS

A z score is typically analyzed when population mean (µ) and population standard deviation (?) are known. However, in SPSS, we can still calculate z scores with the grades.sav data using the sample mean (M) and sample standard deviation (s). To do this, open grades.sav in SPSS. On the Analyze menu, point to Descriptive Statistics, and then click Descriptives

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