1. We should create more parking at SRJC if more than 70% of the students believ
ID: 3486542 • Letter: 1
Question
1. We should create more parking at SRJC if more than 70% of the students believe we should and that seems to be the case. Thus, we should create more parking at the SRJC.
This is an example of:
a) an inductive argument
b) an explanation
c) not an argument
d) a deductive argument
2. In a recent poll, 80% of sampled students at SRJC favored improved parking at SRJC. Thus, about 80% of all SRJC students favor improved parking at SRJC.
Which one of the following would weaken the strength of the conclusion?
a) The sample was a random sample
b) The sample size was 800
c) The sample was limited to day students only
d) the margin of error of the poll was found to be 4%
3. The margin of error in a poll refers to:
a) the percentage of erroneous responses
b) the percentage of people refusing to respond to the poll
c) the percentage of sloppily worded questions
d) none of these
4. Which one of the following is ACCEPTABLE regarding poll results taken in Sonoma County before the 2012 presidential election?
a) margin of error is 95%
b) level of confidence is 3.5%
c) sample size is 700
d) sample was taken during the three days right before the 2012 presidential election
5. Which one of the following is UNACCEPTABLE regarding poll results concerning California?
a) sample size is 600
b) margin of error is 5.5%
c) the pollsters used a stratified random sample
d) sample was taken during the week that students were on Spring Break
Explanation / Answer
1. d. Deductive argument.
Conclusion is drawn from the supporting premises,hence,it is a deductive argument.
2. The sample was limited to day students only.
Reliability of conclusion and samples is strenghtened when the sample represents all aspects of subject to be analysed.
3. d.none of these
Margin of error in polls refers to error in sampling.
4. d. sample was taken during three days right before the 2012 presidential election.
5. d. sample was taken during the week that students were on Spring Break.
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