Chapter 7 vocab

Testing a hypothesis by comparing it with the null hypothesis

• Hypothesis Test
• Left-tailed Test
• Test Statistic (Small Samples)
• Alternative Hypothesis

A statement of equality, =, ≤, ≥

• Null Hypothesis
• P-value
• Right-tailed Test
• Test Statistic (Small Samples)

A statement of inequality, ≠, >, <

• Alternative Hypothesis
• Z-test
• Level of Significance
• Test Statistic (Large Samples)

The null hypothesis is rejected whenever it is true

• Type I Error
• Test Statistic (Large Samples)
• Z-test
• Null Hypothesis

The null hypothesis is not rejected whenever it is false

• Type II Error
• Type I Error
• Left-tailed Test
• Alternative Hypothesis

Maximum allowable probability of making a type I error

• Level of Significance
• Rejection Region
• Hypothesis Test
• Alternative Hypothesis

The probability of obtaining a sample statistic with a value as extreme or more extreme than the one determined from the sample data

• P-value
• Level of Significance
• Rejection Region
• Type I Error

Alternative hypothesis contains the less than inequality symbol

• Left-tailed Test
• Hypothesis Test
• Right-tailed Test
• Null Hypothesis

Alternative hypothesis contains the greater than inequality symbol

• Right-tailed Test
• Rejection Region
• Level of Significance
• T-test for the Mean

In a two-tailed Test, each tail has an area of 1/2P

• Two-tailed Test
• Type I Error
• Right-tailed Test
• Rejection Region