The Ministry of Health in the Canadian province of Ontario wants to know whether
ID: 3354164 • Letter: T
Question
The Ministry of Health in the Canadian province of Ontario wants to know whether the national health care system is achieving its goals in the province. The ministry conducted the Ontario Health Survey, which interviewed a probability sample of 61,239 adults who live in Ontario.†
(a) What is the population for this sample survey?
health professionals in CanadaCanada residents Ontario residentshealth professionals in Ontariothe Ministry of Health
What is the sample?
61,239 adults interviewed that live in Ontario61,239 health professionals in Canada 61,239 members of the Ministry of Health10 provinces in Canada61,239 health professionals in Ontario
(b) The survey found that 76% of males and 86% of females in the sample had visited a general practitioner at least once in the past year. Do you think these estimates are close to the truth about the entire population? Why?
Explanation / Answer
(a) What is the population for this sample survey?
Answer: Ontario residents
What is the sample?
Answer: 61,239 adults interviewed that live in Ontario
(b) Yes, because the sample was stratified and study uses probability sampling and, thus avoids bias and will provide results close to thetruth about the entire population