If we use the sample data in Exercise 2 for constructing a $99 \%$ confidence interval, what is the number of degrees of freedom that should be used for finding the critical value of $t_{\alpha / 2}$ ? What is the critical value $t_{\alpha / 2} ?$
Added by Brooke R.
Step 1
First, we need to know the sample size (n) from Exercise 2. Let's assume the sample size is n. Show moreā¦
Show all steps
Close
Your feedback will help us improve your experience
T. L. and 51 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Find the indicated critical value $z_{\alpha / 2}$. Find the critical value $z_{\alpha / 2}$ that corresponds to a $98 \%$ confidence level.
Abdul K.
Find the critical value $z_{a / 2}$ that corresponds to the given confidence level. $$98 \%$$
Madhur L.
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD