BUAL 2600 LATEST EXAMS STUDY GUIDE
QUESTIONS AND ANSWERS SURE A+
✔✔A population of unlimited size (ex: stars) - ✔✔Infinite population
✔✔What is the best (most efficient) sampling method? - ✔✔probability
✔✔sampling where we know the chance that each element in the population will be
included in the sample; Required for statistical inference - ✔✔probability sampling
✔✔Using sample data to make inferences for the population - ✔✔statistical inference
✔✔3 non-probability methods - ✔✔convenience, voluntary response, judgement
✔✔(Non probability sampling method) Sampling where we select elements because
they are convenient to sample - ✔✔Convenience sampling
✔✔(Non probability sampling method) Samples in which participates self-select;
frequently used by radio and television; over represent people with strong opinions -
✔✔voluntary response sampling
, ✔✔If a teacher wanted to know the average GPA out of everyone in a class, each one
of the students in the class is part of the teacher's population. What non-probability
method is used here? - ✔✔Convenience sampling
✔✔(Non probability sampling method) Samples in which a person who is extremely
knowledgeable about the population selects 1 population elements he or she feels are
most representative. - ✔✔Judgement sampling
✔✔If you go to a restaurant, they may ask for you to fill out a survey. If you don't care,
you ignore the survey. If you really like or do not like the service (you have a strong
opinion), you fill out the survey. What non-probability method is used here? -
✔✔Voluntary response sampling
✔✔When it comes to the probability method, judgement sampling, the quality of the
sampling is completely dependent on the... - ✔✔research knowledge
✔✔(Unethical forms) data is biased; information is not accurate - ✔✔improper sampling
✔✔the use of traditional and newly developed statistical methods, advances in IS, and
techniques from management science to explore and investigate past performance -
✔✔Business analytics
✔✔the use of traditional and newer graphics to represent easy to understand visual
summaries of up to the minute data - ✔✔descriptive analytics
✔✔methods used to find anomalies, patterns, and associations in data sets to predict
future outcomes - ✔✔predictive analytics
✔✔Looking at variables and constraints, along with predictions from predictive
analytics, to recommend courses of action - ✔✔prescriptive analytics
✔✔The use of predictive analytics, algorithms, and IS techniques to extract useful
knowledge from huge amounts of data - ✔✔data mining
✔✔A qualitative variable for which there is no meaningful ordering, or ranking of the
categories - ✔✔nominative
✔✔a qualitative variable for which there is a meaningful ordering or ranking of the
categories - ✔✔ordinal
✔✔What kind of qualitative (categorical) variable is gender and car color? -
✔✔nominative
QUESTIONS AND ANSWERS SURE A+
✔✔A population of unlimited size (ex: stars) - ✔✔Infinite population
✔✔What is the best (most efficient) sampling method? - ✔✔probability
✔✔sampling where we know the chance that each element in the population will be
included in the sample; Required for statistical inference - ✔✔probability sampling
✔✔Using sample data to make inferences for the population - ✔✔statistical inference
✔✔3 non-probability methods - ✔✔convenience, voluntary response, judgement
✔✔(Non probability sampling method) Sampling where we select elements because
they are convenient to sample - ✔✔Convenience sampling
✔✔(Non probability sampling method) Samples in which participates self-select;
frequently used by radio and television; over represent people with strong opinions -
✔✔voluntary response sampling
, ✔✔If a teacher wanted to know the average GPA out of everyone in a class, each one
of the students in the class is part of the teacher's population. What non-probability
method is used here? - ✔✔Convenience sampling
✔✔(Non probability sampling method) Samples in which a person who is extremely
knowledgeable about the population selects 1 population elements he or she feels are
most representative. - ✔✔Judgement sampling
✔✔If you go to a restaurant, they may ask for you to fill out a survey. If you don't care,
you ignore the survey. If you really like or do not like the service (you have a strong
opinion), you fill out the survey. What non-probability method is used here? -
✔✔Voluntary response sampling
✔✔When it comes to the probability method, judgement sampling, the quality of the
sampling is completely dependent on the... - ✔✔research knowledge
✔✔(Unethical forms) data is biased; information is not accurate - ✔✔improper sampling
✔✔the use of traditional and newly developed statistical methods, advances in IS, and
techniques from management science to explore and investigate past performance -
✔✔Business analytics
✔✔the use of traditional and newer graphics to represent easy to understand visual
summaries of up to the minute data - ✔✔descriptive analytics
✔✔methods used to find anomalies, patterns, and associations in data sets to predict
future outcomes - ✔✔predictive analytics
✔✔Looking at variables and constraints, along with predictions from predictive
analytics, to recommend courses of action - ✔✔prescriptive analytics
✔✔The use of predictive analytics, algorithms, and IS techniques to extract useful
knowledge from huge amounts of data - ✔✔data mining
✔✔A qualitative variable for which there is no meaningful ordering, or ranking of the
categories - ✔✔nominative
✔✔a qualitative variable for which there is a meaningful ordering or ranking of the
categories - ✔✔ordinal
✔✔What kind of qualitative (categorical) variable is gender and car color? -
✔✔nominative
