1st year stats question - sampling

[statistics]

Hi,
Can I please have some help? I've not too sure if my answers are correct
For the following statement about a statistical survey, identify the following items (if possible). If you can’t tell,
then say so – this often happens when we hear or read about a survey.
A recent online poll conducted by an Australian newspaper of 1083 registered voters found
 that 43% of the respondents believe it is likely that bushfires are linked to climate change

a) The possible population of interest
respondents who believe it's likely that bushfires are linked to climate change
b) The population parameter
whether bushfires are linked to climate change
c) The sampling frame
1083 registered voters
d) The sample
1083 registered voters
e) The sampling method, including whether or not randomisation was employed
voluntary random sample, randomization is not used
f) Who (if anyone) was left out of the study
People who didn't vote
g) Any potential sources of bias you can detect and any problems you see in generalising to the population of
interest
not sure about this one
g) Any potential sources of bias you can detect and any problems you see in generalising to the population of
interest

[colline]

Hi,
Can I please have some help? I've not too sure if my answers are correct
For the following statement about a statistical survey, identify the following items (if possible). If you can’t tell,
then say so – this often happens when we hear or read about a survey.
A recent online poll conducted by an Australian newspaper of 1083 registered voters found
 that 43% of the respondents believe it is likely that bushfires are linked to climate change

g) Any potential sources of bias you can detect and any problems you see in generalising to the population of
interest
not sure about this one

Hello!
For potential sources of bias, some of the things you can mention include:

- The political views of the audience of the newspaper. Different news sources attract different demographics of the Australian population. For example, most people who get their news from the ABC will have a different view on climate change than people who watch Sky News.

- The age range of people who took the survey. The question specifically said "newspaper" - what do you think is the age range of newspaper readers? How will their view on politics and climate change differ to someone of a different age group?

- People are more likely to respond to a survey if they have stronger opinions since no one would respond to every single survey they come across. This will influence the data you collect.

Hope this helps!

[statistics]

Hello!
For potential sources of bias, some of the things you can mention include:

- The political views of the audience of the newspaper. Different news sources attract different demographics of the Australian population. For example, most people who get their news from the ABC will have a different view on climate change than people who watch Sky News.

- The age range of people who took the survey. The question specifically said "newspaper" - what do you think is the age range of newspaper readers? How will their view on politics and climate change differ to someone of a different age group?

- People are more likely to respond to a survey if they have stronger opinions since no one would respond to every single survey they come across. This will influence the data you collect.

Hope this helps!

Thanks!
And can you please check if my other answers for the question are correct?
For the following statement about a statistical survey, identify the following items (if possible). If you can’t tell,
then say so – this often happens when we hear or read about a survey.
A recent online poll conducted by an Australian newspaper of 1083 registered voters found
 that 43% of the respondents believe it is likely that bushfires are linked to climate change

a) The possible population of interest
respondents who believe it's likely that bushfires are linked to climate change
b) The population parameter
whether bushfires are linked to climate change
c) The sampling frame
1083 registered voters
d) The sample
1083 registered voters
e) The sampling method, including whether or not randomisation was employed
voluntary random sample, randomization is not used
f) Who (if anyone) was left out of the study
People who didn't vote

[Bri MT]

Thanks!
And can you please check if my other answers for the question are correct?
For the following statement about a statistical survey, identify the following items (if possible). If you can’t tell,
then say so – this often happens when we hear or read about a survey.
A recent online poll conducted by an Australian newspaper of 1083 registered voters found
 that 43% of the respondents believe it is likely that bushfires are linked to climate change

a) The possible population of interest
respondents who believe it's likely that bushfires are linked to climate change
b) The population parameter
whether bushfires are linked to climate change
c) The sampling frame
1083 registered voters
d) The sample
1083 registered voters
e) The sampling method, including whether or not randomisation was employed
voluntary random sample, randomization is not used
f) Who (if anyone) was left out of the study
People who didn't vote

Hey,

To start off: If I wanted to see if 18 year olds thought going to the gym is good for them, my population of interest would be 18 year olds - not 18 years who think going to the gym is good.

The sample is a subset of the sampling frame

[statistics]

Hey,

To start off: If I wanted to see if 18 year olds thought going to the gym is good for them, my population of interest would be 18 year olds - not 18 years who think going to the gym is good.

The sample is a subset of the sampling frame

So in this case is the population of interest the 1083 registered voters??

[colline]

So in this case is the population of interest the 1083 registered voters??

When talking about a population we aren't referring to a specific number, but rather a group of people. The 1083 people who responded to the survey would be your sample, which is an estimator for your population.

[statistics]

When talking about a population we aren't referring to a specific number, but rather a group of people. The 1083 people who responded to the survey would be your sample, which is an estimator for your population.

So what would the population of interest be?
would it just be registered voters??

So what would the population of interest be?
would it just be registered voters??

??

Mod Edit: Merged double post. You bumped this when it had been less than 24 hours. I understand it can be stressful to not have the answers you want but be patient.

[colline]

So what would the population of interest be?
would it just be registered voters??

From the information given, I'd say so.

[statistics]

From the information given, I'd say so.

But home come it wouldn't be 1083 registered voters? That's what i'm confused with

[colline]

But home come it wouldn't be 1083 registered voters? That's what i'm confused with

Because the 1083 people who responded to the survey is just your sample size. You use the data you collected from the survey to estimate what the views of the general population might be.

Using Bri's example -- You want to find out whether 18 year olds think going to the gym is good for them. It's unrealistic for you to ask EVERY single 18-year-old in the world and get their opinion. So instead you send out a survey to all the 18 year olds in your region and get back 500 responses. Your population of interest is 18 year olds, your sample size is the 500 responses you get back.

Hope this makes sense. Feel free to ask if you want any clarifications

[statistics]

And can someone please tell me if my other answers for the question are correct?

For the following statement about a statistical survey, identify the following items (if possible). If you can’t tell,
then say so – this often happens when we hear or read about a survey.
A recent online poll conducted by an Australian newspaper of 1083 registered voters found
 that 43% of the respondents believe it is likely that bushfires are linked to climate change
b) The population parameter
43% of the 1083 registered voters who believe bushfires are linked to climate change
c) The sampling frame
1083 registered voters
d) The sample
43% of the 1083 registered voters who believe bushfires are linked to climate change
e) The sampling method, including whether or not randomisation was employed
voluntary response survey, randomization is NOT used
 f) Who (if anyone) was left out of the study
people who didn't vote AND people who didn't participate in the study
g) Any potential sources of bias you can detect and any problems you see in generalising to the population of
interest
people are more likely to respond to the survey if they have a strong opinion on either side
Thanks!

[colline]

b) The population parameter
43% of the 1083 registered voters who believe bushfires are linked to climate change

d) The sample
43% of the 1083 registered voters who believe bushfires are linked to climate change

Referring back to what I said before, the population is the entire group that you're interested in. Hence, your answer to the population parameter shouldn't be the same as your answer for the sample.

[statistics]

Referring back to what I said before, the population is the entire group that you're interested in. Hence, your answer to the population parameter shouldn't be the same as your answer for the sample.

so what is the difference between population of interest and population parameter?

[colline]

so what is the difference between population of interest and population parameter?

Kind of oversimplified but, it's basically the same as the difference between your sampling frame and your sample. Except in regards to population instead.

[statistics]

Kind of oversimplified but, it's basically the same as the difference between your sampling frame and your sample. Except in regards to population instead.

So the population of interest is registered voters
the population parameter is the 1083 registered voters
Are these 2 correct?