A hospital administrator wants to estimate the number of hours worked each day by the nurses in his hospital. The female nurses and male nurses make up 65% and 35% of the nurses working in his hospital, respectively. He randomly selects 50 female and 50 male nurses for his sample survey. So what is the population if interest?What type of sampling method was attemted? Will the sample be representative of the population and prodce a valid result?
I'm stuck on a homework question.?
The population is all the nurses in the hospital.
It looks like simple random sampling was used. As he is only interested in the number of hours worked by nurses each day, the male-female percentage matters and need not have been used. He should have ignored dividing the sexes while sampling as he is not interested in male-female comparison. Rather, he wishes to estimate the number of hours worked each day by nurses. This division may produce a bias if there are differences in working hours between the male and female nurses.
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