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BUAL 2600 Yan Exam 1 Questions And Answers Rated 100% Correct!!
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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...

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  • October 3, 2024
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • BUAL 2600 Yan
  • BUAL 2600 Yan

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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

phone surveys - ✔️✔️-inexpensive
-low response rate

mail surveys - ✔️✔️-inexpensive
-low response rate (20-30%)
-requires multiple mailings

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