Table 2 Required sample sizes for...

Table 2

Required sample sizes for estimating ${\tilde{μ}}_{z}$ for the confidence level c = 0.95, 0.90 and precision f = 0.10, 0.15, 0.20, 0.25, and 0.30 using the normal approximation method

Precision (f)	Confidence (c)	m	n = 2m − 1
f = 0.1	0.95	385	769
	0.9	271	541
f = 0.15	0.95	171	341
	0.9	121	341
f = 0.2	0.95	97	193
	0.9	68	135
f = 0.25	0.95	62	123
	0.9	44	87
f = 0.30	0.95	43	85
	0.9	30	59

Source(s): Table by authors

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