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# Chapter 8. Hypothesis Tests for a Single Variable Y

• 8.1 Introduction to Hypothesis Testing 186

• 8.1.1 Accept or Reject Decisions for the Mean: H0 versus HA 186

• 8.1.2 Significance Level a 190

• 8.1.3 Test Statistic 191

• 8.1.4 p-Value 191

• 8.1.5 Decision Rule to Accept or Reject H0 192

• 8.1.6 Example: Order Processing Times 192

• 8.1.7 Test Statistic, Significance Level, Critical Value, and p-Value 198

• 8.1.8 Example: Order Processing with JMP 200

• 8.1.9 Confidence Intervals and Two-Sided Hypothesis Testing 202

• 8.2 Sample Size Needed to Test H0: Mean = Mean0 versus HA: Mean = MeanA 203

• 8.2.1 Introduction 203

• 8.2.2 Example: Sample Size Calculations for Mama Mia's Pizza Parlor 205

• 8.2.3 Sample Size in JMP 206

• 8.2.4 Approximate Formulas for Sample Size 208

• 8.2.5 Power Curves ...

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