Data on investments in the high-tech industry by venture capitalists are compiled by a corporation. A random sample of 18 venture-capital investments in a certain business sector yielded the accompanying data, in millions of dollars. Assuming that the population standard deviation is $1.79 million, a 99% confidence interval for the mean amount, u, of all venture-capital investments in this business sector is from $4.470 million to $6.644 million. Complete parts (a) and (b) below. (Note: The sum of the data is $100.03 million.) Click here to view the investment data. Click here to view page 1 of the table of areas under the standard normal curve. Click here to view page 2 of the table of areas under the standard normal curve. a. Obtain the margin of error (in millions of dollars) by taking half the length of the confidence interval. Select the correct choice below and fill in the answer box to complete your choice. (Round to three decimal places as needed.) 6.644 O A. 4.470 2 V4.470² + 6,644? OB. 6.644 - 4.470 Oc. 1.79 O D. V18 4.470 + 6.644 OE.
Data on investments in the high-tech industry by venture capitalists are compiled by a corporation. A random sample of 18 venture-capital investments in a certain business sector yielded the accompanying data, in millions of dollars. Assuming that the population standard deviation is $1.79 million, a 99% confidence interval for the mean amount, u, of all venture-capital investments in this business sector is from $4.470 million to $6.644 million. Complete parts (a) and (b) below. (Note: The sum of the data is $100.03 million.) Click here to view the investment data. Click here to view page 1 of the table of areas under the standard normal curve. Click here to view page 2 of the table of areas under the standard normal curve. a. Obtain the margin of error (in millions of dollars) by taking half the length of the confidence interval. Select the correct choice below and fill in the answer box to complete your choice. (Round to three decimal places as needed.) 6.644 O A. 4.470 2 V4.470² + 6,644? OB. 6.644 - 4.470 Oc. 1.79 O D. V18 4.470 + 6.644 OE.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Data on investments in the high-tech industry by venture capitalists are compiled by a corporation. A random sample of 18 venture-capital investments in a certain business sector yielded the accompanying data, in millions of dollars. Assuming that the population standard deviation is $1.79 million, a 99% confidence interval for the mean amount, μ, of all venture-capital investments in this business sector is from $4.470 million to $6.644 million. Complete parts (a) and (b) below. (Note: The sum of the data is $100.03 million.)
Transcribed Image Text:Investment Data
4.79
5.21
3.02
5.27
4.81
6.76
5.28
3.47
8.85
8.51
7.47
4.48
2.33
5.41
7.93
4.97
5.96
5.51
Print
Done
Transcribed Image Text:Data on investments in the high-tech industry by venture capitalists are compiled by a corporation. A random sample of 18 venture-capital investments in a certain business sector yielded the accompanying data, in millions of dollars. Assuming
that the population standard deviation is $1.79 million, a 99% confidence interval for the mean amount, µ, of all venture-capital investments in this business sector is from $4.470 million to $6.644 million. Complete parts (a) and (b) below. (Note:
The sum of the data is $100.03 million.)
Click here to view the investment data.
Click here to view page 1 of the table of areas under the standard normal curve.
Click here to view page 2 of the table of areas under the standard normal curve.
a. Obtain the margin of error (in millions of dollars) by taking half the length of the confidence interval.
Select the correct choice below and fill in the answer box to complete your choice.
(Round to three decimal places as needed.)
6.644
O A.
4.470
2
V4.4702 + 6.644?
В.
2
6.644 - 4.470
2
1.79
D. V18
4.470 + 6.644
Е.
2
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