A statistic based on a sample is an estimate of some population characteristic. However, samples will differ and so the statistic - which is based on the sample - will take different values. The sampling distribution gives an indication of ho accurate the sample statistic is to its population counterpart.
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The mean of the sampling distribution is the population mean.
The sampling distribution for a statistic is the distribution of the statistic across all possible samples of that specific size which can be drawn from the population.
No, as you said it is right skewed.
A sample of 24 observations is taken from a population that has 150 elements. The sampling distribution of is
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