{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

# hw6 - STAT424 Spring 2010 Homework#6 Homework 6 Due Tuesday...

This preview shows pages 1–2. Sign up to view the full content.

STAT424 Spring 2010 Homework #6 Apr 27, 2010 Homework 6 Due: Tuesday, May 4, 2010 1) Although tea is the world’s most widely consumed beverage after water, little is known about its nutritional value. Folacin is the only B vitamin present in any significant amount in tea, and recent advances in assay methods have made accurate determination of folacin content feasible. Consider the accompanying data on folacin content for randomly selected four brands of green tea. Brand Observations 1 7.9 6.2 6.6 8.6 8.9 2 5.7 7.5 9.8 6.1 8.4 3 6.8 7.5 5.0 7.4 5.3 4 6.4 7.1 7.9 4.5 5.0 (a) Consider a one-way random effects model y ij = μ + α i + e ij for this data. Construct a 95% CI for μ . (b) Does this data suggest that there are differences between the brands. State your H 0 and H a and use α = 0 . 05. (c) Based on the result in (b), will you change your answer to (a)? (d) What are the ML estimates for σ 2 A and σ 2 ? (e) What are the REML estimates for σ 2 A and σ 2 ? 2) Suppose an experimenter sets out to estimate σ 2 A and σ 2 from a balanced one-way random effects model where N

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern