Question: The average family size was reported as 3.18. A random sample of families in a particular school district resulted in the following family sizes: At

The average family size was reported as 3.18. A random sample of families in a particular school district resulted in the following family sizes:

5 4 4 4 3 6 4 3 3 3 7 4

At α = 0.05, does the average family size differ from the national average?

5 4 4 4 3 6 4 3 3 3 7 4 5 2 2 3 5 12

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