STATS503 - VOCAB EXAM QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS VERIFIED
statistics
study of the methods to describe and measure aspects of nature from samples
estimation
process of inferring an unknown quanitty of a population using sample data
parameter
a (numeric) quantity describing a population
estimate/statistic
a related quantity calculated from a sample
model
a simplified representation of some part of the real world
biological models explain:
how we think living systems work
- identify the important physical & biological parts of the system
- describe the casual relationship among those parts
- make specific testable predictions about the patterns that we expect to see in our data
statistical models:
- describe and summarize the patterns in data
- explain the effects of sampling error & other sources of random variation on those
patterns
, - allow us to draw reliable (valid) conclusions about patterns that exist in the real world
based on limited data sets
study population
the collection of all the individual units that we want to draw conclusions about
sample
a smaller group selected from the population that we actually observe and collect data
on
sample/study units
members of a population
a single specimen
a biological sample
sample unit
one specimen / an individual observation of the system or phenomenon that we are
studying
statistical sample
a group of specimens collected from the same study population
variables
characteristics of the individuals in the sample that we observe or measure when we
collect data that may differ from individual to individual
parameter
a quantity describing a population
hypothesis testing
uses data to evaluate evidence for or against statistical hypotheses
COMPLETE SOLUTIONS VERIFIED
statistics
study of the methods to describe and measure aspects of nature from samples
estimation
process of inferring an unknown quanitty of a population using sample data
parameter
a (numeric) quantity describing a population
estimate/statistic
a related quantity calculated from a sample
model
a simplified representation of some part of the real world
biological models explain:
how we think living systems work
- identify the important physical & biological parts of the system
- describe the casual relationship among those parts
- make specific testable predictions about the patterns that we expect to see in our data
statistical models:
- describe and summarize the patterns in data
- explain the effects of sampling error & other sources of random variation on those
patterns
, - allow us to draw reliable (valid) conclusions about patterns that exist in the real world
based on limited data sets
study population
the collection of all the individual units that we want to draw conclusions about
sample
a smaller group selected from the population that we actually observe and collect data
on
sample/study units
members of a population
a single specimen
a biological sample
sample unit
one specimen / an individual observation of the system or phenomenon that we are
studying
statistical sample
a group of specimens collected from the same study population
variables
characteristics of the individuals in the sample that we observe or measure when we
collect data that may differ from individual to individual
parameter
a quantity describing a population
hypothesis testing
uses data to evaluate evidence for or against statistical hypotheses
