Question

Self-isolation for Coronavirus

In the context of the current pandemic situation, the Ottawa Health Agency (OHA) was interested to know how Ottawa residents support their recommended self-isolation instructions related to the novel Coronavirus. They commissioned a professional agency to do a survey of 1000 individuals living in the city in March 2020 and obtained the following results:

Support of OHA Self-Isolation Instructions

	Support	Oppose	Total
Returning travellers	69	81	150
Non-travellers who had contact	243	207	450
Non-travellers who didn’t have contact	300	100	400

What is the population of interest?

Question 13 options:

	Ottawa residents who participated in the survey
	Ottawa residents in March 2020
	Ottawa citizens

Question 14 (1 point)

Self-isolation for Coronavirus

In the context of the current pandemic situation, the Ottawa Health Agency (OHA) was interested to know how Ottawa residents support their recommended self-isolation instructions related to the novel Coronavirus. They commissioned a professional agency to do a survey of 1000 individuals living in the city in March 2020 and obtained the following results:

Support of OHA Self-Isolation Instructions

	Support	Oppose	Total
Returning travellers	69	81	150
Non-travellers who had contact	243	207	450
Non-travellers who didn’t have contact	300	100	400

Which of the following best describes the purpose of this exercise?

Question 14 options:

	Descriptive statistics about a sample
	Inferring information about a population from information about a sample
	Descriptive statistics about a population
	Inferring information about a sample from information about a population

Question 15 (1 point)

Self-isolation for Coronavirus

In the context of the current pandemic situation, the Ottawa Health Agency (OHA) was interested to know how Ottawa residents support their recommended self-isolation instructions related to the novel Coronavirus. They commissioned a professional agency to do a survey of 1000 individuals living in the city in March 2020 and obtained the following results:

Support of OHA Self-Isolation Instructions

	Support	Oppose	Total
Returning travellers	69	81	150
Non-travellers who had contact	243	207	450
Non-travellers who didn’t have contact	300	100	400

If OHA approximates the probability of supporting/opposing the self-isolation instructions of different sub-populations (travellers and non-travellers) in March 2020 based on this survey, which method of assessment is used?

Question 15 options:

	Theoretical probability
	Empirical probability
	Subjective probability

Question 16 (1 point)

Self-isolation for Coronavirus

In the context of the current pandemic situation, the Ottawa Health Agency (OHA) was interested to know how Ottawa residents support their recommended self-isolation instructions related to the novel Coronavirus. They commissioned a professional agency to do a survey of 1000 individuals living in the city in March 2020 and obtained the following results:

Support of OHA Self-Isolation Instructions

	Support	Oppose	Total
Returning travellers	69	81	150
Non-travellers who had contact	243	207	450
Non-travellers who didn’t have contact	300	100	400

What is the appropriate statistic for assessing the support for OHA recommended self-isolation instructions related to novel Coronavirus?

Answer 1

13.
The population of interest is,
Ottawa residents in March 2020

14.
OHA was interested to know how Ottawa residents support their recommended self-isolation instructions related to the novel Coronavirus.
The purpose of this exercise is,
Inferring information about a population from information about a sample

15.
This is an empirical probability which is what actually happens when we try it out.
Empirical probability

16.
Total number of respondents who support = 69 + 243 + 300 = 612
The appropriate statistic for assessing the support for OHA recommended self-isolation instructions related to novel Coronavirus is sample proportion of support for OHA recommended self-isolation
Sample proportion, p = 612 / 1000 = 0.612