Question Get Answer

This question was created from facotr 64


include sas code and calculation

17. Soap experiment, continued
In Example 3.6.2, page 53, a sample size calculation was made for the number of
observations needed to detect, with probability * (0.25) = 0.90, a difference in weight
loss of at least A = 0.25 grams in v = 3 difference types of soap, using an analysis
of variance with a probability of o = 0.05 of a Type I error. The calculation used an
estimate of 0.007 grams for o and showed that r = 4 observations were needed on
each type of soap. The experiment was run with r = 4, and the least squares estimate
for o' was 0.0772. If the true value for o was, in fact, 0.08, what power did the test
actually have for detecting a difference of A = 0.25 grams in the weight loss of the
three soaps?

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.

  • -

    Study Documents

    Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access.

    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
Let our 24/7 Statistics and Probability tutors help you get unstuck! Ask your first question.
A+ icon
Ask Expert Tutors You can ask You can ask You can ask (will expire )
Answers in as fast as 15 minutes