(6) 2. A data set has a distribution that is skewed left with a mean of...

(6) 2. A data set has a distribution that is skewed left with a mean of 88 and a standard deviation of 22. I take 30,000 samples each of size 20 from this data set. Then the sampling distribution of sample means will have

a) Mean = _______ b) standard deviation = ____________ c) What shape distribution? __________

(8) 3. The number of miles driven on trips for Thanksgiving is normally distributed with a mean of 120 miles and a standard deviation of 30 miles. What is the probability a sample of 48 trips would have an average mileage driven over 130 miles?

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orchestra answered 1 year ago

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