Help pleaseee:)

#1
Okay, so I'm horrible at math, and am having the hardest time with this stats problem, if anyone could help, I would so appreciate it.

Pollsters regularly conduct opinion polls to determine the popularity rating of the current president. Suppose a poll is to be conducted tomorrow in which 2000 individuals will be asked whether the president is doing a good or bad job. The 2000 individuals will be selected by random-digit telephone dialing and asked the question over the phone.


1. What is the relevant population?

2. What is the variable of interest? Is it quantitative or categorical?

3. What is the sample?

4. What is the inference of interest to the pollster?

5. What method of data collection is employed?

6. How likely is the sample to be representative?
 
#2
by the way

by the way, the answers i have so far are these..and they are probably wrong.

1. What is the relevant population?

The relevant population would be all of the citizens of the United States.

2. What is the variable of interest? Is it quantitative or categorical?

The variable of interest is whether the president is doing a good or bad job. It is categorical.

3. What is the sample?

The sample is the 2000 people randomly selected in the U.S. who have a telephone.

4. What is the inference of interest to the pollster?

The inference of interest to the pollster is the approval rating of the president.

5. What method of data collection is employed?

The method employed would be the pollsters randomly dialing numbers.


6. How likely is the sample to be representative?
 

JohnM

TS Contributor
#3
1. What is the relevant population?
all U.S. citizens who are eligible to vote

2. What is the variable of interest? Is it quantitative or categorical?
approval rating - the % of respondents who say "good" - this is quantitative

3. What is the sample?
your answer is correct

4. What is the inference of interest to the pollster?
estimating the % of the entire voting population that approve of the president's job

5. What method of data collection is employed?
seems to be a simple random sample

6. How likely is the sample to be representative?
tough to answer - this is highly dependent on who the survey "reaches"
if forced to answer, I would say unlikely...