View the step-by-step solution to:

Consider the particle size of a particular product. The product specifications require that the variance of the particle sizes be 14.

This question was answered on May 06, 2010. View the Answer
Consider the particle size of a particular product. The product specifications require that the variance of the particle sizes be 14.40. Production personnel measured the particle size for a sample of 25 observations, with the following results:
99.6



92.1



103.8



95.3



101.6





102.8



100.9



100.5



102.7



96.9





101.5



96.7



96.8



97.8



104.7





103.2



97.5



98.3



105.8



100.6








102.3


93.8


102.7


94.9


94.9


a. Conduct a hypothesis test to test the claim that the variance of the particle sizes is 14.40. Use an α = 0.05.


b. Construct a 95% confidence interval for the true variance of the particle sizes.


c. What assumptions did you have to make in order to perform the above analyses? Please evaluate how well the data meet the assumptions.


Please explain step by step. Thank you for the help.
Sign up to view the entire interaction

Top Answer

We need you to clarify your question for our tutors! Clarification request: Dear Student, We... View the full answer

This question was asked on May 06, 2010 and answered on May 06, 2010.

Recently Asked Questions

Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors and customizable flashcards—available anywhere, anytime.

-

Educational Resources
  • -

    Study Documents

    Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access or to earn money with our Marketplace.

    Browse Documents
  • -

    Question & Answers

    Get one-on-one homework help from our expert tutors—available online 24/7. Ask your own questions or browse existing Q&A threads. Satisfaction guaranteed!

    Ask a Question
  • -

    Flashcards

    Browse existing sets or create your own using our digital flashcard system. A simple yet effective studying tool to help you earn the grade that you want!

    Browse Flashcards