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Question 1 (1 point) A population is slightly skewed to the right, has a mean of...

Question 1 (1 point)

A population is slightly skewed to the right, has a mean of 75 and a standard deviation of 7. 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 has a mean of ...

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Question 2 (1 point)

A population is slightly skewed to the left, has a mean of 71 and a standard deviation of 7. If a random sample of 26 items are selected from this population, then the mean score of these 26 items is from a sampling distribution that has a standard deviation of ...

Round your answer to two decimal places. (For example 4.58)

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Question 3 (1 point)

A random sample of 40 individuals is selected from a population that is mound shaped but sightly skewed to the left, has a mean of 67.5 and a standard deviation of 8.9. The mean of these 40 observations belongs to a sampling distribution that has a shape that is best described as

Question 3 options:

skewed right

normal

skewed left

uniform
Math   Statistics-And-Probability   
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