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a population is slightly skewed to the right has a mean of 77 and a standard...

a population is slightly skewed to the right has a mean of 77 and a standard deviation of 12. If a random sample of 28 items are selected from this population, then the mean score of these 28 items is from a sampling distribution that jas a mean of...?

a population is slightly skewed to the left has a 56 and a standard deviation of 8. If a random sample of 32 items are selected from this population, then the mean score of these 32 items is from a sampling distribution that has a standard deviation...?


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