Question: Refer to Exercise 7.14. (a) Obtain the maximum likelihood estimates of (mu) and (sigma). (b) Find the maximum likelihood of the coefficient of variation (sigma

Refer to Exercise 7.14.

(a) Obtain the maximum likelihood estimates of $\mu$ and $\sigma$.

(b) Find the maximum likelihood of the coefficient of variation $\sigma / \mu$.

Data From Exercises 7.14

7.14 To monitor complex chemical processes, chemical engineers will consider key process

What can the engineer assert with 95% confidence about the maximum error if he uses the sample mean to estimate true mean value of the performance indicator?

7.14 To monitor complex chemical processes, chemical engineers will consider key process indicators, which may be just yield but most often depend on several quantities. Before trying to improve a process, n = 9 measurements were made on a key performance indicator. 123 106 114 128 113 109 120 102 111

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