Mathematics, 05.11.2019 05:31 collin0123
If the distribution of the population has a nonzero standard deviation and mean 10 then the probability that an individual data value will be greater than 11 is always less than the probability that the mean of 25 randomly selected data values will be greater than 11
true or false?
Answers: 1
and variance 
, where 
are the mean a variance respectively of the sampling distribution. This always that the mean and the variance are both finite and the sample size n is greater than 30. We could use the central limit theorem, but in this case does not help us because we are considering 25 randomly selected data values, besides, we do not know the distribution of the original population.
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If the distribution of the population has a nonzero standard deviation and mean 10 then the probabil...
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