Twelve different video games showing substance use were observed and the duration of times of game play (in seconds) are listed below. The design of the study justifies the assumption that the sample can be treated as a simple random sample. Use the sample data to construct a 99% confidence interval estimate of o, the standard deviation of the duration times of game play. Assume that this sample was obtained from a population with a normal distribution. 4,241 3,810 4,086 4,755 3,962 3,935 4,900 4,933 Click the icon to view the table of Chi-Square critical values. The confidence interval estimate is sec<< [ (Round to one decimal place as needed.) GECER 4,300 4,646 sec. 4,714 4,407 D
Twelve different video games showing substance use were observed and the duration of times of game play (in seconds) are listed below. The design of the study justifies the assumption that the sample can be treated as a simple random sample. Use the sample data to construct a 99% confidence interval estimate of o, the standard deviation of the duration times of game play. Assume that this sample was obtained from a population with a normal distribution. 4,241 3,810 4,086 4,755 3,962 3,935 4,900 4,933 Click the icon to view the table of Chi-Square critical values. The confidence interval estimate is sec<< [ (Round to one decimal place as needed.) GECER 4,300 4,646 sec. 4,714 4,407 D
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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![**Study on Video Game Duration Featuring Substance Use**
Twelve different video games featuring substance use were observed. The duration times of gameplay (in seconds) are listed below. The study is designed for the sample to be treated as a simple random sample. The goal is to use this data to construct a 99% confidence interval estimate for σ, the standard deviation of gameplay duration times. It is assumed that this sample is from a population with a normal distribution.
**Gameplay Duration Times (seconds):**
- 4,241
- 4,086
- 3,962
- 4,900
- 4,300
- 4,714
- 3,810
- 4,755
- 3,935
- 4,933
- 4,646
- 4,407
To find the confidence interval, you may need to refer to a table of Chi-Square critical values.
**Confidence Interval Estimate:**
The estimate is given in the form:
\[ \text{Confidence interval estimate is } \square \text{ sec} < \sigma < \square \text{ sec} \]
*Note: Round to one decimal place as needed.*](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F042a8735-5c88-4898-a930-fc7b8d4f9458%2F0fc73ad8-d70f-44fd-b52e-333c823fdd04%2Fw1eyz6y_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Study on Video Game Duration Featuring Substance Use**
Twelve different video games featuring substance use were observed. The duration times of gameplay (in seconds) are listed below. The study is designed for the sample to be treated as a simple random sample. The goal is to use this data to construct a 99% confidence interval estimate for σ, the standard deviation of gameplay duration times. It is assumed that this sample is from a population with a normal distribution.
**Gameplay Duration Times (seconds):**
- 4,241
- 4,086
- 3,962
- 4,900
- 4,300
- 4,714
- 3,810
- 4,755
- 3,935
- 4,933
- 4,646
- 4,407
To find the confidence interval, you may need to refer to a table of Chi-Square critical values.
**Confidence Interval Estimate:**
The estimate is given in the form:
\[ \text{Confidence interval estimate is } \square \text{ sec} < \sigma < \square \text{ sec} \]
*Note: Round to one decimal place as needed.*
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