An investigator polls common cold sufferers, asking them to estimate the number of hours of physical discomfort
Question:
An investigator polls common cold sufferers, asking them to estimate the number of hours of physical discomfort caused by their most recent colds. Assume that their estimate approximate a normal curve with a mean of 83 hours and a standard deviation of 20 hours. Another researcher wishes to compare those who suffered least with those who suffered most. If each group is to consist of only the extreme 3 percent, the mild group will consist of those who suffered for fewer than --------- hours, and the severe group will consist of those who suffered for more than ------- hours.
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PX xo 003 Normal Distribution 83 o 20 003 83 83 a20 X PX xo 003 X Px 0 Xo 4538 PZ x0 ...View the full answer
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