题目内容
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183 Two sources of variation in the length of hex bolts exist. Production variation and measurement error. The QC manager knows that the standard deviation from these sources is 0.24" and 0.43" , respectively. What is the total standard deviation.
A. .10 inch.
B. .19 inch.
C. .34 inch.
D. .49 inch.
E. .67 inch
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65 Two sources of variation in the length of hex bolts exist. Production variation and measurement error. The QC manager knows that the standard deviation from these sources is 0.24" and 0.43" , respectively. What is the total standard deviation.
A. .10 inch.
B. .19 inch.
C. .34 inch.
D. .49 inch.
E. .67 inch.
It is certain that men will never stop to find new energy sources to power their growing industry.()
