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Stats Sophia 5, Statistics Sophia 4, Statistics Sophia 2, Statistics Sophia 1.1 questions and answer
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Stats Sophia 5, Statistics Sophia 4, Statistics Sophia 2, Statistics Sophia 1.1 questions and answer

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  • July 3, 2024
  • 7
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

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  • stats sophia 5 statistics sophia 4 statistics so

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Stats Sophia 5, Statistics Sophia 4,
Statistics Sophia 2, Statistics Sophia 1.1
Absolute Change - correct answer-The raw increase or decrease in the value of a variable

Accuracy - correct answer-The extent to which the values, when considered all together,
center around the correct value for a variable.

An experimental design where the assignment of subjects to treatments is done entirely at
random. - correct answer-

Available Data - correct answer-Data collected by some other entity. Ex: a government
organization or private company.

Bias - correct answer-The systematic favoring of certain outcomes in a study. There are
many ways to introduce bias into a study

Binomial Question Type - correct answer-A question that will yield categorical data with just
two possible values.

Blinding - correct answer-The practice of making sure that certain individuals do not know
which subjects are receiving which treatment.

Census - correct answer-Using the entire population to obtain data

Census - correct answer-Using the entire population to obtain data

Closed Question - correct answer-A question type with only so many different answer
choices.

Cluster Sample - correct answer-A sampling method where the population is separated into
groups, typically geographically, and a random selection of clusters is made. Each individual
in the cluster becomes part of the sample.

Clusters - correct answer-Smaller subgroups of the population, not necessarily similar in any
way besides all being together in one place, making the individuals easier to sample
together.

Completely Randomized Design - correct answer-

Confidence Interval - correct answer-A range of potential values that the true value could be.
It is obtained by adding and subtracting the margin of error from sample mean.

, Confounding - correct answer-Occurs when the effects of the treatments, if any, are
indistinguishable from the potential effects of some other variable which was unaccounted
for.

Confounding Variable - correct answer-A variable which was not accounted for in a study,
which limits the conclusions that the study can draw.

Consumer Price Index - correct answer-An index published by the US Bureau of Labor
Statistics that shows the change in the price of many different goods or services in the
United States. It provides a measure of purchasing power.

Continuous Data - correct answer-Data that can take any value within an interval.

Continuous Data - correct answer-Data that can take any value within an interval.

Control - correct answer-The principle of experimental design that requires that other
variables which may confound the experiment be held constant between the treatment
groups, so that any differences in the groups can be attributed to the different treatments.

Convenience Sample - correct answer-A sample that is easily obtained. It is often not
representative of the population.

Data - correct answer-Information used in a study to answer a statistical question

Data - correct answer-Unorganized, unprocessed, and not summarized; Typically, this is
data that is not already available.

Deliberate Bias - correct answer-The purposeful misrepresentation of data for the purpose of
advancing an agenda.

Descriptive statistics - correct answer-Using only the information at hand to describe the
selected group of individuals

Discrete Data - correct answer-Data that can only take so many different values.

Double-Blind Experiment - correct answer-An experiment where neither the subjects, nor
anyone in contact with them, has any knowledge of which subjects are receiving which
treatment.

Estimate - correct answer-The mean value obtained from the sample. If the sample was
well-collected, the estimate should be reasonably close to the true value.

Experiment - correct answer-A type of study where researchers impose treatments on the
participants or experimental units.

Experimental Design - correct answer-The way in which an experiment is carried out. A good
design has key elements of randomization, replication, and control.

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