Exam (elaborations)
Statistics 231 McNeese exam with answers.
- Course
- Stats 231
- Institution
- Stanford University
Statistics 231 McNeese exam with answers.
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Statistics 231 McNeese exam with answersData - ** VERIFIED ANSWERS🔰 ✔✔consists of information coming from observations,
counts, measurements, or responses
Population - ** VERIFIED ANSWERS🔰 ✔✔the collection of all outcomes, responses,
measurements, or counts that are of interest (Ex: everyone in a classroom)
Sample - ** VERIFIED ANSWERS🔰 ✔✔a subset of the population (Ex: a few in the larger
classroom)
Statistics - ** VERIFIED ANSWERS🔰 ✔✔the science of collecting, organizing, analyzing,
and interpreting data in order to make a decision
Parameter - ** VERIFIED ANSWERS🔰 ✔✔the numerical description of a population
characteristic
Statistic - ** VERIFIED ANSWERS🔰 ✔✔a numerical description of a sample characteristic
Descriptive statistics - ** VERIFIED ANSWERS🔰 ✔✔branch of statistics that involves the
organization, summarization, and display of data
Inferential statistics - ** VERIFIED ANSWERS🔰 ✔✔the branch of statistics that involves
using a sample to draw conclusions about a population
Qualitative Data - ** VERIFIED ANSWERS🔰 ✔✔consists of attributes, labels, or
nonnumerical entries (quality)
, Quantitative Data - ** VERIFIED ANSWERS🔰 ✔✔Consists of numerical measurements or
counts
Nominal Level of Measurement - ** VERIFIED ANSWERS🔰 ✔✔qualitative ONLY (no
math)
Ordinal Level of Measurement - ** VERIFIED ANSWERS🔰 ✔✔both qualitative &
quantitative
-can be put into order
Interval Level of Measurement - ** VERIFIED ANSWERS🔰 ✔✔-data can be ordered
-meaningful differences between data entries can be calculated
-zero entry is just a position
Ratio Level of Measurement - ** VERIFIED ANSWERS🔰 ✔✔-zero means nonexistent
-meaningful differences are multiples of other data entries
Confounding variable - ** VERIFIED ANSWERS🔰 ✔✔occurs when an experimenter
cannot tell the difference between the effects of different factors on a variable
Blinding - ** VERIFIED ANSWERS🔰 ✔✔a technique where the subject does not know
whether they are receiving a treatment or a placebo
Double-blind experiment - ** VERIFIED ANSWERS🔰 ✔✔neither the experimenter nor
the subjects know if the subjects are receiving a treatment or a
placebo
Randomization - ** VERIFIED ANSWERS🔰 ✔✔a process of randomly assigning subjects
to different treatment groups
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