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The annual growth of a sample of manufacturing industries at Northernhouse are give below: $70000, $72000, $65000, $75000 and $68000. (a) Find the sample mean.

The annual growth of a sample of manufacturing industries at Northernhouse are give below:

$70000, $72000, $65000, $75000 and $68000.

(a) Find the sample mean.

(b) Is the mean you computed in (a) a statistic or a parameter? Why?

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