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21 Mar 2018
A population variable has a distribution with mean u= 50 and variance o = 225. From this population a simple random sample of n observations is to be selected and the mean of the sample values calculated. 6. If the population variable is known to be Normally distributed and the sample size used is to be n = 16, what is the probability that the sample mean will be between 48.35 and 55.74, i.e., P(48.35 s I s 55.74)? A) 0.393 B) 0.607 C) 0.937 D) 0.330 E) Not within +0.010 of any of the above.
A population variable has a distribution with mean u= 50 and variance o = 225. From this population a simple random sample of n observations is to be selected and the mean of the sample values calculated. 6. If the population variable is known to be Normally distributed and the sample size used is to be n = 16, what is the probability that the sample mean will be between 48.35 and 55.74, i.e., P(48.35 s I s 55.74)? A) 0.393 B) 0.607 C) 0.937 D) 0.330 E) Not within +0.010 of any of the above.
teacherrecoLv10
20 Apr 2022
Tod ThielLv2
22 Mar 2018
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