Problem regarding the stock returns

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Stock returns

Companies that are ISO 9000 certified have met standards that ensure they have a quality manage- ment system committed to continuous improvement. Going through the certification process generally involves a substantial investment that includes the hiring of external auditors. A group of such auditors, wishing to "prove" that ISO 9000 certification pays off, randomly selected a sample

a) What was the purpose of using Major as a blocking factor?

b) Given the results, was it necessary to use Major as a blocking factor? Explain.

c) State the conclusion from this analysis.

Reference no: EM131008114

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Problem regarding the stock returns : Companies that are ISO 9000 certified have met standards that ensure they have a quality manage- ment system committed to continuous improvement.

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