Table I Population and samples...

Table I

Population and samples information

Industry	Semiconductor		Computer and peripheral equipment		Optoelectronic		Total
Population no. of industrial companies	146		107		126		379
No. of sample companies	115		85		100		300
No. of sample managers	343		225		262		830
Department	Production	R&D	Production	R&D	Production	R&D
Valid no. of responses	49	36	34	28	43	29	219
Average age of managers	42.57	36.68	40.83	37.10	39.71	35.47	38.72
Average service years of managers	7.13	5.28	6.98	4.36	6.15	3.76	5.61

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