Question

2. Data on investment in the high-tech industry by venture capitalists are compiled by Venture One Corporation and published in America's Network Telecom Investor Supplement. A random sample of n = 18 venture capital investments in the fiber optics business sector had the sample mean z = 6.33 and standard deviation s = 2.04 (in millions of dollars). Construct and interpret a 95% confidence interval for the mean amount u of all venture capital investments in the fiber optics business sector.

Answer 1

ņ=18 F = 6-33, 5 = 204, C = 95% =0.95 x=1-0.95 20.05 at 18-lalt 842 = 0.025 t ales det at 0-025.147 = 2-110 95% confilince Internal for his = tayzen = 6.33 + 2•110* 2.0 & 6.30 & 1.0146 = 5.315 , 7.345