APPLIED HEALTHCARE STATISTICS EXAM
STUDY QUESTIONS AND 100% CORRECT
ANSWERS!!
What is statistics?
Gather
Order
Classify
Analyze
Interpret
=> a bridge between data and models.
Objective of stat
to make the strongest possible conclusion from a limited amount of data.
How to make good Extrapolating from "sample" to "population?
Assumption that our data were randomly selected from a
large population.
Analysis of data and make inferences about the total population
Problems to face:
biological variability vs real diff
Random variability and human brain is capable of finding patterns even in random data.
True or false: Statistics lets you make general conclusions from limited data
true
True or false: Statistics is intuitive
false
, True or false: Statistical conclusions are always presented in terms of
probability
true
True or false: All statistical tests are based on assumptions.
true
True or false: Decisions about how to analyze data should be made after
inspecting the data.
false; it should be BEFORE
True or false: Published statistics tend to be optimistic.
true
What is quantitative variable
have a numerical value associated.
Quantitative variable types
Continuous -> infinite number
Discrete
What is qualitative variable?
without a numerical value associated,
refer to a category or quality.
Qualitative variable type
Ordinal -> can be ranked
Nominal variable
What is Response or dependent variables?
rincipal variable of the
study, the outcome of the study
STUDY QUESTIONS AND 100% CORRECT
ANSWERS!!
What is statistics?
Gather
Order
Classify
Analyze
Interpret
=> a bridge between data and models.
Objective of stat
to make the strongest possible conclusion from a limited amount of data.
How to make good Extrapolating from "sample" to "population?
Assumption that our data were randomly selected from a
large population.
Analysis of data and make inferences about the total population
Problems to face:
biological variability vs real diff
Random variability and human brain is capable of finding patterns even in random data.
True or false: Statistics lets you make general conclusions from limited data
true
True or false: Statistics is intuitive
false
, True or false: Statistical conclusions are always presented in terms of
probability
true
True or false: All statistical tests are based on assumptions.
true
True or false: Decisions about how to analyze data should be made after
inspecting the data.
false; it should be BEFORE
True or false: Published statistics tend to be optimistic.
true
What is quantitative variable
have a numerical value associated.
Quantitative variable types
Continuous -> infinite number
Discrete
What is qualitative variable?
without a numerical value associated,
refer to a category or quality.
Qualitative variable type
Ordinal -> can be ranked
Nominal variable
What is Response or dependent variables?
rincipal variable of the
study, the outcome of the study
