QUANTITATIVE RESEARCH TECHNIQUES
STATISTICS PEREGRINE FINAL PAPER 2026
TESTED QUESTIONS WITH ACCURATE
ANSWERS GRADED A+
⩥ Significance level.
Answer: Measures the reliability of a statistical inference
⩥ inferential statistics.
Answer: Process of using sample statistics (mathematics) to draw
conclusions about population parameters
⩥ mutually exclusive.
Answer: Events that cannot occur at the same time.
⩥ sampling error.
Answer: the difference between the results of random samples taken at
the same time
⩥ non-sampling error.
, Answer: occurs when the sample data are incorrectly collected,
recorded, or analyzed. Three types of errors: data acquisition errors, non-
response errors (or bias), selection bias
⩥ Design of a good survey components.
Answer: short survey, short/simple questions, start with demographic
questions, ues dichtomous (yes-no) and multiple choice
⩥ Direct observation.
Answer: example: counts backpacks on campus for a day
⩥ stratified random sample.
Answer: a sample from selected subgroups of the target population in
which everyone in those subgroups has an equal chance of being
included in the research
example: The manager of a customer service division wants to know if
the customers in the past 12 months are satisfied with their purchase of
CD's. There are four types of CD's.
⩥ Joint Probability.
Answer: the probability of the intersection of two events
⩥ Union of two events.
STATISTICS PEREGRINE FINAL PAPER 2026
TESTED QUESTIONS WITH ACCURATE
ANSWERS GRADED A+
⩥ Significance level.
Answer: Measures the reliability of a statistical inference
⩥ inferential statistics.
Answer: Process of using sample statistics (mathematics) to draw
conclusions about population parameters
⩥ mutually exclusive.
Answer: Events that cannot occur at the same time.
⩥ sampling error.
Answer: the difference between the results of random samples taken at
the same time
⩥ non-sampling error.
, Answer: occurs when the sample data are incorrectly collected,
recorded, or analyzed. Three types of errors: data acquisition errors, non-
response errors (or bias), selection bias
⩥ Design of a good survey components.
Answer: short survey, short/simple questions, start with demographic
questions, ues dichtomous (yes-no) and multiple choice
⩥ Direct observation.
Answer: example: counts backpacks on campus for a day
⩥ stratified random sample.
Answer: a sample from selected subgroups of the target population in
which everyone in those subgroups has an equal chance of being
included in the research
example: The manager of a customer service division wants to know if
the customers in the past 12 months are satisfied with their purchase of
CD's. There are four types of CD's.
⩥ Joint Probability.
Answer: the probability of the intersection of two events
⩥ Union of two events.
