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Researchers for the Herbal Medicine Council collected information on people's experiences with a new herbal remedy for colds. They went to a store that sold natural health products. There they asked 100 customers whether they had taken the cold remedy and, if so, to rate its effectiveness (on a scale from 1 to 10) in curing their symptoms. The Council concluded that this product was highly effective in treating the common cold.

a) Identify the W's of these data.

b) Identify the variables, classify each as categorical or quantitative, and specify units if relevant.

c) Are you confident about the Council s conclusion? Explain.

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Category:- Statistics and Probability
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