BUAL 2600 Yan Exam 1 Questions And Answers Rated 100% Correct!!
Course
BUAL 2600 Yan
Institution
BUAL 2600 Yan
dichotomous questions - ️️-clearly stated
-easy to answer
-easy to analyze
-limited information
voluntary response sampling - ️️samples in which participants self-select
-frequently used by radio and television
-over represent people with strong opinions
Data - ️️Facts and figure...
BUAL 2600 Yan Exam 1
dichotomous questions - ✔️✔️-clearly stated
-easy to answer
-easy to analyze
-limited information
voluntary response sampling - ✔️✔️samples in which participants self-select
-frequently used by radio and television
-over represent people with strong opinions
Data - ✔️✔️Facts and figures from which conclusions can be drawn
Data Set - ✔️✔️The data that are collected for a particular study
Variable - ✔️✔️any characteristic of an element
Quantitative Variables - ✔️✔️The possible measurements of the values of a variable
are numbers that represent quantities
Ex: Age
Qualitative (Categorical) Variables - ✔️✔️Labels or names used to identify an attribute
of each element
Ex: Names, addresses, phone numbers
Cross Sectional Data - ✔️✔️Data collected at. the same time or approximately the
same time
Time Series Data - ✔️✔️Data collected over different time periods
Population - ✔️✔️A set of all elements about which we draw conclusions
Sample - ✔️✔️A. subset of all the elements in a population
Probability Sampling - ✔️✔️Sampling where we know the change that each element in
the population will be included in the sequence
convience sampling - ✔️✔️sampling where we select elements because they are
convenient to sample
not a probability sample
, judgements sampling - ✔️✔️samples in which a person who is extremely knowledgable
about the population selects population elements he or she feels are most
representative
nominative variable - ✔️✔️a qualitative variable for which there is no meaningful
ordering, or ranking, of the categories
Ex: gender, car color
ordinal variable - ✔️✔️A qualitative variable for which there is a meaningful ordering or
ranking of the categories.
Ex: teaching effectiveness
interval variable - ✔️✔️All of the characteristics of ordinal (meaningful ranking) plus...
measurements are on a numerical scale with an arbitrary zero point and can only
meaningfully compare values by the interval between them
Ex: Temperature
ratio variable - ✔️✔️interval plus Measurements are on a numerical scale with a
meaningful zero point such as anything related to money
Ex: Earnings, profit, loss, age, distance, height
stratified random sampling - ✔️✔️divide population into non-overlapping groups (strata)
then select a random sample from each strata
multistage cluster sampling - ✔️✔️divide population into clusters and then randomly
select clusters to sample
systematic sampling - ✔️✔️list population, select random starting point, sample each
nth element
multiple choice questions - ✔️✔️-allow more than two responses
-usually analyzed with averages
open-ended questions - ✔️✔️-most honest and complete information
-cannot be readily summarized
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