The average cost of getting a four-year college degree in a certain region of th

Question

The average cost of getting a four-year   college degree in a certain region of the country is $48,600 with a standard   deviation of $8,100.  Assume costs are   normally distributed. 4 The cost for   what proportion of graduates in this region fall within $3,000 of the overall   average? a 0.2886







b 0.3293







c 0.3674







d 0.3955

















5 What   proportion of sample means from samples of size n = 16 graduates fall within    The average cost of getting a four-year   college degree in a certain region of the country is $48,600 with a standard   deviation of $8,100.  Assume costs are   normally distributed. 4 The cost for   what proportion of graduates in this region fall within $3,000 of the overall   average? a 0.2886







b 0.3293







c 0.3674







d 0.3955

















5 What   proportion of sample means from samples of size n = 16 graduates fall within   

Explanation / Answer

5.

Confidence interval = u

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