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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. Determine and interpret a 95% confidence interval for the mean amount, µ, of all venture-capital investments in this business sector. Assume that the population standard deviation is $1.94 million. (Note: The sum of the data is $123.07 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 curv The 95% confidence interval is from $ million to $ million. Investment data (Round to two decimal places as needed.) 5.95 6.42 6.61 9.82 3.71 5.54 6.64 6,35 4.33 9,04 6.07 7.57 4,45 8.63 10.11 5,04 9,50 7.29

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. Determine and interpret a 95% confidence interval for the mean amount, µ, of all venture-capital investments in this business sector. Assume that the population standard deviation is $1.94 million. (Note: The sum of the data is $123.07 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 curv The 95% confidence interval is from $ million to $ million. Investment data (Round to two decimal places as needed.) 5.95 6.42 6.61 9.82 3.71 5.54 6.64 6,35 4.33 9,04 6.07 7.57 4,45 8.63 10.11 5,04 9,50 7.29

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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**Investment Data Analysis in the High-Tech Industry** Investments in the high-tech industry by venture capitalists have been evaluated through data compiled by a corporation. A random sample of 18 venture-capital investments within a specific business sector was examined, with the data provided in millions of dollars. The objective is to determine and interpret a 95% confidence interval for the mean investment, denoted as μ, across all venture-capital investments in this sector. The population standard deviation is considered to be $1.94 million. It is noted that the cumulative sum of the data amounts to $123.07 million. ### Investment Data: The following table presents the investment data: ``` | 5.95 | 6.42 | 6.61 | 9.82 | 3.71 | 5.54 | | 6.64 | 6.35 | 4.33 | 9.04 | 6.07 | 7.57 | | 4.45 | 8.63 | 10.11 | 5.04 | 9.50 | 7.29 | ``` ### Confidence Interval: To calculate the 95% confidence interval for the mean investment: - The confidence interval is estimated to range from $______ million to $______ million. - Calculations should be rounded to two decimal places as needed. ### Resources: - [View the Investment Data](#) - [Standard Normal Curve Table Page 1](#) - [Standard Normal Curve Table Page 2](#) This analysis provides essential insights into the venture-capital investment patterns within the high-tech sector, aiding strategic financial decisions.
Transcribed Image Text:**Investment Data Analysis in the High-Tech Industry** Investments in the high-tech industry by venture capitalists have been evaluated through data compiled by a corporation. A random sample of 18 venture-capital investments within a specific business sector was examined, with the data provided in millions of dollars. The objective is to determine and interpret a 95% confidence interval for the mean investment, denoted as μ, across all venture-capital investments in this sector. The population standard deviation is considered to be $1.94 million. It is noted that the cumulative sum of the data amounts to $123.07 million. ### Investment Data: The following table presents the investment data: ``` | 5.95 | 6.42 | 6.61 | 9.82 | 3.71 | 5.54 | | 6.64 | 6.35 | 4.33 | 9.04 | 6.07 | 7.57 | | 4.45 | 8.63 | 10.11 | 5.04 | 9.50 | 7.29 | ``` ### Confidence Interval: To calculate the 95% confidence interval for the mean investment: - The confidence interval is estimated to range from $______ million to $______ million. - Calculations should be rounded to two decimal places as needed. ### Resources: - [View the Investment Data](#) - [Standard Normal Curve Table Page 1](#) - [Standard Normal Curve Table Page 2](#) This analysis provides essential insights into the venture-capital investment patterns within the high-tech sector, aiding strategic financial decisions.
According to a study of political prisoners, the mean duration of imprisonment for 34 prisoners with chronic post-traumatic stress disorder (PTSD) was 31.7 months. Assuming that σ = 43 months, determine a 90% confidence interval for the mean duration of imprisonment, μ, of all political prisoners with chronic PTSD. Interpret your answer in words. [There are clickable links to view tables of areas under the standard normal curve.] A 90% confidence interval for the population mean is from [ ] months to [ ] months. (Round to one decimal place as needed.)
Transcribed Image Text:According to a study of political prisoners, the mean duration of imprisonment for 34 prisoners with chronic post-traumatic stress disorder (PTSD) was 31.7 months. Assuming that σ = 43 months, determine a 90% confidence interval for the mean duration of imprisonment, μ, of all political prisoners with chronic PTSD. Interpret your answer in words. [There are clickable links to view tables of areas under the standard normal curve.] A 90% confidence interval for the population mean is from [ ] months to [ ] months. (Round to one decimal place as needed.)
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