Question
In: Statistics and Probability
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.
|
40444044 |
38743874 |
38673867 |
40324032 |
43174317 |
48104810 |
46604660 |
40274027 |
50075007 |
48184818 |
43444344 |
43164316 |
Click
Solutions
Expert Solution
Formula for Confidence Interval for Population mean when population Standard deviation is not known
Sample size : n = 12
Sample mean:
Sample standard deviation :
| x:Duration time |
 |
 |
|
| 4044 | -299 | 89401 | |
| 3874 | -469 | 219961 | |
| 3867 | -476 | 226576 | |
| 4032 | -311 | 96721 | |
| 4317 | -26 | 676 | |
| 4810 | 467 | 218089 | |
| 4660 | 317 | 100489 | |
| 4027 | -316 | 99856 | |
| 5007 | 664 | 440896 | |
| 4818 | 475 | 225625 | |
| 4344 | 1 | 1 | |
| 4316 | -27 | 729 | |
| Total |  52116 |
= 1719020 |
|
| Mean | 
= 52116/12 =4343 |
| Sample Size : n | 12 |
| Degrees of freedom : n-1 | 11 |
| Confidence Level : | 95 |
 =
(100-95)/100 |
0.05 |
|
/2 =
0.05/2 |
0.025 |
 |
2.201 |
95 % Confidence interval estimate of 
,
the mean duration of game play:
95 % Confidence interval estimate of ,
the mean duration of game play = (4091.8267,4594.1733)
orchestra answered 2 years agoRelated Solutions
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 90% confidence interval estimate of u, the mean duration of game
play.
4042 3880 3850 4022 4322 4814 4660 4037 5003 4823 4332 4323
What is the confidence interval estimate of the population
mean?...
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 ??, the mean duration of
game play.
4053,
3881,
3851,
4037,
4319,
4808,
4664,
4038,
5013,
4819,
4327,
4326
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
95% confidence interval estimate of μ, the mean duration of
game play.
40444044
38923892
38553855
40364036
43164316
48194819
46524652
40294029
49944994
48154815
43404340
43104310
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...
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 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. Use Chi-Square critical...
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 sigma,
the standard deviation of the duration times of game play. Assume
that this sample was obtained from a population with a normal
distribution. 4,103 4,072 4,269...
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 99% 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. 4811 4751 4268...
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 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. 4251 4261 4551...
Q13. Twelve different video games showing substance use were observed and the duration of times of...
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
normal distribution.
4015...
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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