Question
In: Statistics and Probability
Twelve different video games showing substance use were observed and the duration of times of game...
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 95% confidence interval estimate of σ, the standard deviation of the duration times of game play. Assume that this sample was obtained from a population with a normal distribution.
3909 5028 4195 3837 4205 3908 3918 4279 4119 4199 4379 5027
sec< σ < sec
Solutions
Expert Solution
 |
 |
 |
| 3909 | -341.25 | 116451.5625 |
| 5028 | 777.75 | 604895.0625 |
| 4195 | -55.25 | 3052.5625 |
| 3837 | -413.25 | 170775.5625 |
| 4205 | -45.25 | 2047.5625 |
| 3908 | -342.25 | 117135.0625 |
| 3918 | -332.25 | 110390.0625 |
| 4279 | 28.75 | 826.5625 |
| 4119 | -131.25 | 17226.5625 |
| 4199 | -51.25 | 2626.5625 |
| 4379 | 128.75 | 16576.5625 |
| 5027 | 776.75 | 603340.5625 |
| 51003 | 1765344.25 | |
 |
 |
Refer chi-square table or use excel formula "=CHISQ.INV.RT(0.975,11)" & "=CHISQ.INV.RT(0.025,11)" to find the critical values.
orchestra answered 2 years agoRelated Solutions
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Click here to view a t distribution table.
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Twelve different video games showing substance use were observed and the duration times of game play...
Twelve different video games showing substance use were observed
and the duration 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 data to construct
a
9595 %
confidence interval estimate of
muμ ,
the mean duration of game play.
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50075007
48184818
43444344
43164316
Click
Twelve different video games showing substance use were observed and the duration times of game play...
Twelve different video games showing substance use were observed
and the duration 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 data to construct
a
95% confidence interval estimate of μ, the mean duration of
game play.
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38923892
38553855
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46524652
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Q13. 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 an 80%
confidence interval estimate of
sigma σ,
the standard deviation of the duration times of game play.
Assume that this sample was obtained from a population with a
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incorrect,7.3.13 Twelve different video games showing substance use were observed and the duration of times of...
incorrect,7.3.13 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 an 80% confidence
interval estimate of sigma, the standard deviation of the duration
times of game play. Assume that this sample was obtained from a
population with a normal distribution. 4 .607...
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