Unit 9 Checkpoint: Inference for Means

This is a Checkpoint quiz on all of Unit 9 (Modules 22-25.)

• You have four attempts on this Checkpoint. Questions may be different on each version. Canvas will record your highest score. 
• After each attempt, review your answers and use the feedback to learn from your mistakes.
• Save your answers as you go. If you close this window without saving your answers, your answers will be lost, and it will count as one of your four attempts.
• Be sure it hit Submit when you are finished.