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Evaluate the validity of this claim by considering

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Reference no: EM131786518

A radio ad for a major national corporation makes this claim:

90% of our clients rate our services 'excellent'.

Evaluate the validity of this claim by considering the data collection, the analysis, and the potential for error in interpreting this claim.

Note: Assume that the claim itself is true; i.e., that the corporation is not simply lying.

Reference no: EM131786518

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