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.
40464046 |
38783878 |
38523852 |
40174017 |
43254325 |
48154815 |
46514651 |
40354035 |
50135013 |
48174817 |
43284328 |
43194319 |
Click here to view a t distribution table.
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Solution :
Given that 4046,3878,3852,4017,4325,4815,4651,4035,5013,4817,4328,4319
=> mean x-bar = sum of terms/number of terms
= 52096/12
= 4341.3333
=> standard deviation s = 397.6031
=> n = 12 , df = n - 1 = 11
=> For 95% confidence interval , t = 2.179
=> The 95% confidence interval of the mean is
=> x-bar +/- t*s/sqrt(n)
=> 4341.3333 +/- 2.179*397.6031/sqrt(12)
=> (4091.2318 , 4591.4348)
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 99% confidence interval estimate of muμ, the mean duration of game play. 4056, 3878, 3852, 4028, 4323, 4813, 4656, 4027, 5007, 4816, 4330, 4313
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 μ , the mean duration of game play. 4620 4820 4890 4247 3906 4020 4307 4426 4881 4262 4953 4921 What is the confidence interval estimate of the...
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. 4053 3878 3861 4032 4316 4819 4647 4043 5008 4830 4332 4321 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 (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. (Don't round until end of problem) 40454045 38913891 38693869 40234023 43154315 48074807 46564656 40344034 50055005 48154815 43404340 43104310 What is the confidence...
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 90% 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. 4900 4545 4123...
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 90% 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. 4,975 3,914 4,103...
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. 4671, 3809 ,4019,...
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 mu, the mean duration of game play. 4040 3874 3866 4030 4325 4819 4651 4036 5009 4826 4336 4319 Click here to view a t distribution table. What is...
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 4,058 4,498 3,9774,063...
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 98% confidence interval estimate of. the standard deviation of the duration times of game play. Assume that this sample was obtained from a population with a normal distribution. 4,503 4,638 503 ,023...