An investigator polls a representative sample of common cold sufferers, asking them to estimate the number of hours of physical discomfort caused by their most recent cold. Their estimates approximate a normal curve with a mean of 83 hours and a standard deviation of 20 hours. Show your z-score and p-value calculations. (1) Inverse Normal Distribution: What is the estimated number of hours for the shortest-suffering 10 percent? (1) Inverse Normal Distribution: A medical researcher wishes to concentrate on the 20 percent who suffered the most. To be included in this group, a patient would have suffered how many hours?

An investigator polls a representative sample of common cold sufferers, asking them to estimate the number of hours of physical discomfort caused by their most recent cold. Their estimates approximate...

Jun 02, 2022