A medical researcher wants to estimate the survival time of a patient after the onset of a particular type of cancer and after a particular regimen of radiotherapy.
a. What is the variable of interest to the medical researcher?
b. Is the variable in part a qualitative, quantitative discrete, or quantitative continuous?
c. Identify the population of interest to the medical researcher.
d. Describe how the researcher could select a sample from the population.
e. What problems might arise in sampling from this population?