For each description of data, identify theW’s, name the variables, specify for each variable whether itsuse indicates that it should be treated as categorical or quantitative, and, for any quantitative variable, identify the units inwhich it was measured (or note that they were not provided) Herbal medicine Scientists at a major pharmaceuticalfirm conducted an experiment to study the effectivenessof an herbal compound to treat the common cold. Theyexposed each patient to a cold virus, then gave themeither the herbal compound or a sugar solution known tohave no effect on colds. Several days later they assessedeach patient’s condition, using a cold severity scale ranging from 0 to 5. They found no evidence of the benefitsof the compound
For each description of data, identify the
W’s, name the variables, specify for each variable whether its
use indicates that it should be treated as categorical or quantitative, and, for any quantitative variable, identify the units in
which it was measured (or note that they were not provided)
Herbal medicine Scientists at a major pharmaceutical
firm conducted an experiment to study the effectiveness
of an herbal compound to treat the common cold. They
exposed each patient to a cold virus, then gave them
either the herbal compound or a sugar solution known to
have no effect on colds. Several days later they assessed
each patient’s condition, using a cold severity scale
of the compound
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