In a medical study involving five pairs of identical twins, one member of each pair has a particular disease, while the other does not. The average body temperature of those individuals with the disease is 97.35°, whileand the average body temperature of those individuals who do not havewithout the disease is 98.84°.
The researcher then concludes, "People who have this particular disease have a lower body temperature." Why is this probably not a valid claim?

Question

In a medical study involving five pairs of identical twins, one member of each pair has a particular disease, while the other does not. The average body temperature of those individuals with the disease is 97.35°, whileand the average body temperature of those individuals who do not havewithout the disease is 98.84°.
The researcher then concludes, "People who have this particular disease have a lower body temperature." Why is this probably not a valid claim?

anonymous · Answer

A.The difference in body temperatures of the two groups is too small.
B.Both groups have body temperatures below what is considered normal; their temperatures are less than 98.6°.
C.The sample size is too small; the researcher should have studied more than five pairs of twins.
D.The study should have included participants that were not related instead of pairs of twins.