A t-distribution has _________ samples in the extreme tails than a z-distribution, which results in larger critical values when doing a t-test.
Added by Tiffanee N.
Step 1
** Show more…
Show all steps
Close
Your feedback will help us improve your experience
Prabhat Tyagi and 54 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
Below are the standard normal distribution and t-distribution with degrees of freedom. Standard Normal Distribution (Z-distribution) t-Distribution Which of the following statements are consistent with the display shown above? Check all that apply: - The probability of getting a statistic of 2.0 or higher is greater than the probability of getting a statistic higher than 2.0. - The t-distribution is fatter and has wider tails. This means that it is more likely to observe sample means further from the population mean. - The critical value for Ě‘Ě‘ = 0.05 will be higher for the t-distribution than for the Z-distribution. - The chance of rejecting the null hypothesis is always higher for a t-test than for a Z-test.
Madhur L.
Using the t-distribution table, what is the test statistic for a one-tail test for a sample size of 1001 at the 0.05 significance level?
Anna D.
When using the t-statistic and a t-distribution, the larger the degrees of freedom, the: Greater the chance that the test will be invalid More the curve will approximate a normal distribution Larger the tails of the distribution curve More the curve deviates from a normal distribution
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD