QQuestionStatistics
QuestionStatistics
How do you find the p-value from a z-score on a TI- 84 Plus calculator?
11 months agoReport content
Answer
Full Solution Locked
Sign in to view the complete step-by-step solution and unlock all study resources.
Step 1:I'll provide a step-by-step guide to finding the p-value from a z-score using a TI- 84 Plus calculator:
Step 2:: Access the Appropriate Distribution Menu
- Select option 3: $$normalcdf(
- Press the [2nd] button - Press [DISTR] (above the [TRACE] key)
Step 3:: Determine the Calculation Type
- For a two-tailed test, you'll calculate the probability in both tails - For a one-tailed test, you'll calculate the probability in one tail
Step 4:: Input the Z-Score Calculation
p\text{-value} = P(Z < z\text{-score})$$ (for left-tailed)
- For a two-tailed test: - For a one-tailed test:
Step 5:: Use the Calculator Procedure
- Choose option 2: $$normalpdf(
- Press [2nd] [DISTR] - Enter the z-score - Press [ENTER]
Final Answer
Pro Tips: - Always check whether your test is one-tailed or two-tailed - Verify the direction of the test (left-tailed, right-tailed, or two-tailed) - Round p-values to three decimal places - Compare the p-value to your significance level (\alpha) to make a statistical decision
Need Help with Homework?
Stuck on a difficult problem? We've got you covered:
- Post your question or upload an image
- Get instant step-by-step solutions
- Learn from our AI and community of students