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Chapter 5 · Data Analysis: A Concise Overview of Statistical Techniques · Slide 195/274

Hypothesis Testing

Step 3 · expected frequencies

5.2.1 · Hypothesis TestingStep 3 · expected frequencies

Hypothesis Testing

Step 3 · Choosing the appropriate test statistic
fe — frequencies we would expect in the cells if there were no relationship.
fo — the frequencies actually observed.
fe = nr · ncn
nr — total sum in a row
nc — total sum in a column
n — sample size
fe₁,₁ = 15 · 1530 = 7.5
fe₁,₂ = 15 · 1530 = 7.5
fe₂,₁ = 15 · 1530 = 7.5
fe₂,₂ = 15 · 1530 = 7.5
QUESTIONSTAR · Dr. Paul Marx195 / 274
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