Exam (elaborations)
STA 2023 Elementary Statistics STA 2023 Module 1 Quiz
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- Saint Petersburg College
STA 2023 Elementary Statistics
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Module 1 Quiz (Solutions)Select the most appropriate response.
A
A 1. Which of the following correctly describes the relationship between a parameter and a statistic?
a) A statistic is calculated from sample data and is generally used to estimate a parameter.
b) Statistics are a group of subjects selected according to the parameters of a study.
c) A parameter is calculated from sample data and is generally used to estimate a statistic.
d) A parameter and a statistic are not related.
ldentify the population.
-l ,. A study was done to determine the average commute time per week to and from class for an SPC
student attending a lecture class. For convenience, a sample of 60 students was taken by randomly
selecting a lecture class on the Gibbs campus (30 students), and also a lecture class on the Clearwater
campus (30 students). The students selected for the sample were then asked where they were
commuting from, when, and how often. The information was then entered into a GPS system in order
to obtain estimated commuting times.
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a)
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b)
AIISPC students.
Allfull-time SPC students. II
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c) All part-time SPC students. | | 7ff avata-U,.. car>1t^*16
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d) All SPC students who attend lecture classes.
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Select the most appropriate response.
A 3. Which branch of statistics deals with the organization and summarization of collected information?
a) descriptive g,Llr:{ics ts as.zt L )"t";k-'#^- /-ofu Collcz*e/-
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b) inferential whr.rat f.tr*,-/t+o s&-hsh<s /s ttst( /o );'r1-r'
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4. From past figures, it is predicted that 19% of the registered voters in California will vote in the June
primary.
a) descriptive
b) inferential
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, Classify the variable as qualitative or quantitative.
E-5 The cost of a Statistics textbook.
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a)
b)
qualitative
quantitative
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Glassify the variable as qualitative or quantitative.
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a) qualitative
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b) quantitative
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( rtn^L,r.J', #- num/ea Wtll rtot lorr-' I mrorr,f-( un',* od *\
Decide which method of data collection you would use to collect data for the study. Specify
either observational study, experiment, simulation, or suryey.
A study where a drug was given to 23 patients and a placebo to another group of 23 patients to
determine if the drug has an effect on a patient's illness.
a) simulation TVtt s,laarian a(tgt rtks an /fc),nc.-/r' 742' a/a/al'
b) survey /atsrr'/ a cloatly ex'sy' anh/ -Az *9
c) experiment
d) observationalstudy /5 f?\forn.l-.'
Decide which method of data collection you would use to collect data for the study. Specify
either observational study, experiment, or simulation.
8. A study where a political pollster wishes to determine if his candidate is leading in the polls for an
upcoming election.
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a) simulation A n obgrrruat.*z-r.F
b) observational study
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c) experiment
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ldentify the sampling method used.
Ln 50 sophomores, 30 juniors and 20 seniors are randomly selected from 500 sophomores, 300 juniors
and 200 seniors at a certain high school.
a)
b)
stratified fiis l,sniks & S*t/,f;'d 5o"fl1 n'c#"('' 7/--
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c) convenience pvnn,naf a,r*7br{
d)
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systematic
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on 01-12-2022
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https://www.coursehero.com/file/21844213/Module-1-Quiz-Solutions-2/
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