Consider Example 12-4 concerning the efficiency of synthetic fuel for which the factors are an additive and
Question:
(a) What is your conclusion regarding the significance of the factors or their interactions? Test at the 5% level of significance.
(b) Find a 95% confidence interval for the mean efficiency when the additive is at level I and the catalyst is at level 2.
(c) Find a 95% confidence interval for the difference in the treatment means when the additive is at level I and the catalyst is at level 3 versus when the additive is at level II and the catalyst is at level 3. What is your conclusion?
(d) What levels of additive and catalyst would you prefer to choose?
(e) Was it beneficial to select only five automobiles and replicate the treatments on only those automobiles? Test at the 5% level of significance.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Related Book For
Fundamentals of quality control and improvement
ISBN: 978-0470226537
3rd edition
Authors: amitava mitra
Question Posted: