Question: Preliminary data analyses indicate that you can reasonably apply the z-interval procedure (Procedure 8.1 on page 339) in Exer- cises 8.69-8.74. 8.69 Venture-Capital Investments. Data

Preliminary data analyses indicate that you can reasonably apply the z-interval procedure (Procedure 8.1 on page 339) in Exer- cises 8.69-8.74. 8.69 Venture-Capital Investments. Data on investments in the high-tech industry by venture capitalists are compiled by VentureOne Corporation and published in America's Network Telecom Investor Supplement. A random sample of 18 venture-capital investments in the fiber optics business sector yielded the following data, in millions of dollars. 5.60 6.27 5.96 10.51 2.04 5.48 5.74 5.58 4.13 8.63 5.95 6.67 4.21 7.71 9.21 4.98 8.64 6.66 Determine and interpret a 95% confidence interval for the mean amount, /4, of all venture-capital investments in the fiber optics business sector. Assume that the population standard deviation is $2.04 million. (Note: The sum of the data is $113.97 million.)

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