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introduction to statistical quality control 5e montgomery 솔루션

산업공학과 그리고 통계학과에서 품질관리 교재로 자주 쓰는 introduction to statistical quality control 5e입니다.

Chapter 2 Exercise Solutions
Several exercises in this chapter differ from those in the 4th edition.Chapter 2 Exercise Solutions
Several exercises in this chapter differ from those in the 4th edition. An “*” following the exercise number indicates that the description has changed (e.g., new values). A second exercise number in parentheses indicates that the exercise number has changed. For example, “2-16* (2-9)” means that exercise 2-16 was 2-9 in the 4th edition, and that the description also differs from the 4th edition (in this case, asking for a time series plot instead of a digidot plot). New exercises are denoted with an “?”. 2-1*. (a) x = ∑ xi n = (16.05 + 16.03 +
n i =1

+ 16.07 ) 12 = 16.029 oz

(b)
n

s=

i =1

∑ x ? ∑ xi
2 i i =1

( )
n

2

n

n ?1

=

(16.052 +

+ 16.07 2 ) ? (16.05 + 12 ? 1

+ 16.07) 2 12

= 0.0202 oz

MTB > Stat > Basic Statistics > Display Descriptive Statistics Descriptive Statistics: Ex2-1
Variable Ex2-1 Variable Ex2-1 N N* Mean 12 0 16.029 Maximum 16.070 SE Mean 0.00583 StDev 0.0202 Minimum 16.000 Q1 16.0

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