the average waiting time in an airport varies the standard deviation of waiting times in the airport is 10.4 minutes. a random sample of 35 customers in the airport has a standard deviation of waiting times of 9.6 minutes. the airport manager believes the variance of waiting times is greater than originally thought . what is the test statistic
Added by Kathryn H.
Step 1
This implies a one-tailed test. The null hypothesis (H0) is that the population variance is equal to the original value, and the alternative hypothesis (H1) is that the population variance is greater than the original value. H0: σ² = 10.4² (where σ² is the Show more…
Show all steps
Close
Your feedback will help us improve your experience
Thuc Nguyen and 59 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
The average waiting time in a doctor’s office varies. The standard deviation of waiting times in a doctor’s office is 3.4 minutes. A random sample of 30 patients in the doctor’s office has a standard deviation of waiting times of 4.1 minutes. One doctor believes the variance of waiting times is greater than originally thought. What is the test statistic?
Thuc N.
The Chi-Square Distribution
Test of a Single Variance
The average waiting time in a doctor's office varies. The standard deviation of waiting times in a doctor's office is 3.4 minutes. A random sample of 30 patients in the doctor's office has a standard deviation of waiting times of 4.1 minutes. One doctor believes the variance of waiting times is greater than originally thought. What is the test statistic?
David N.
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