QUANTITATIVE RESEARCH TECHNIQUES
AND STATISTICS PEREGRINE
EXAMINATION TEST 2026 FULL SOLUTION
GUIDE WITH DETAILED RATIONALES
⩥ Which of the following is a measure of the reliability of a statistical
inference?. Answer: A significance level
⩥ The process of using sample statistics to draw conclusions about
population parameters is called __________.. Answer: doing inferential
statistics
⩥ Which of the following statements involve descriptive statistics as
opposed to inferential statistics?. Answer: The Alcohol, Tobacco and
Firearms Department reported that Houston had 1,791 registered gun
dealers in 1997.
⩥ A population of all college applicants exists who have taken the SAT
exam in the United States in the last year. A parameter of the population
are __________.. Answer: SAT scores
⩥ Which of the following statements is true regarding the design of a
good survey?. Answer: The questions should be kept as short as possible
, ⩥ Which method of data collection is involved when a researcher counts
and records the number of students wearing backpacks on campus on a
given day?. Answer: Direct observation
⩥ The manager of the customer service division of a major consumer
electronics company is interested in determining whether the customers
who have purchased a videocassette recorder over the past 12 months
are satisfied with their products. If there are four different brands of
videocassette recorders made by the company, the best sampling strategy
would be to use a __________.. Answer: stratified random sample
⩥ Which of the following types of samples is almost always biased?.
Answer: Self-selected samples
⩥ _________ is an expected error based only on the observations
limited to a sample taken from a population.. Answer: sampling error
⩥ Bayes's Law is used to compute __________.. Answer: posterior
probabilities
⩥ The classical approach describes a probability _________.. Answer: in
terms of the proportion of times that an event can be theoretically
expected to occur
AND STATISTICS PEREGRINE
EXAMINATION TEST 2026 FULL SOLUTION
GUIDE WITH DETAILED RATIONALES
⩥ Which of the following is a measure of the reliability of a statistical
inference?. Answer: A significance level
⩥ The process of using sample statistics to draw conclusions about
population parameters is called __________.. Answer: doing inferential
statistics
⩥ Which of the following statements involve descriptive statistics as
opposed to inferential statistics?. Answer: The Alcohol, Tobacco and
Firearms Department reported that Houston had 1,791 registered gun
dealers in 1997.
⩥ A population of all college applicants exists who have taken the SAT
exam in the United States in the last year. A parameter of the population
are __________.. Answer: SAT scores
⩥ Which of the following statements is true regarding the design of a
good survey?. Answer: The questions should be kept as short as possible
, ⩥ Which method of data collection is involved when a researcher counts
and records the number of students wearing backpacks on campus on a
given day?. Answer: Direct observation
⩥ The manager of the customer service division of a major consumer
electronics company is interested in determining whether the customers
who have purchased a videocassette recorder over the past 12 months
are satisfied with their products. If there are four different brands of
videocassette recorders made by the company, the best sampling strategy
would be to use a __________.. Answer: stratified random sample
⩥ Which of the following types of samples is almost always biased?.
Answer: Self-selected samples
⩥ _________ is an expected error based only on the observations
limited to a sample taken from a population.. Answer: sampling error
⩥ Bayes's Law is used to compute __________.. Answer: posterior
probabilities
⩥ The classical approach describes a probability _________.. Answer: in
terms of the proportion of times that an event can be theoretically
expected to occur
