A consulting firm wishes to evaluate the performance of four software packages (A, B, C, and D)
Question:
(a) Test at the 5% level of significance for the equality of the mean computational times of the four software packages.
(b) Find a 95 % confidence interval for the mean computational time using software package C.
(c) Find a 95% confidence interval for the difference in the mean computational times of software packages A and C. Is there a difference between the two?
(d) Which software package would you choose, and why?
(e) Was blocking of the two variables, problem type and operating system configuration, effective?
(f) If you had to rerun the experiment, what type of design would you use?
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Related Book For
Fundamentals of quality control and improvement
ISBN: 978-0470226537
3rd edition
Authors: amitava mitra
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