# Study sets matching "stats 1040"

Study sets

Diagrams

Classes

Users

Observational Study

Controlled Experiment

Association

Causation

A statistical study comparing two groups (treatment and contro…

A statistical study comparing two groups (treatment and contro…

The only relationship that can be established with observation…

A definitive relationship that can be established only with co…

Observational Study

A statistical study comparing two groups (treatment and contro…

Controlled Experiment

A statistical study comparing two groups (treatment and contro…

Statistics

Descriptive statistic

Inferential statistic

Population

How to collect, organize, summarize and analyze information so…

Organizing and summarizing collected data

Methods that take sample results to extend it to (generalize a…

Entire group of interest being studied

Statistics

How to collect, organize, summarize and analyze information so…

Descriptive statistic

Organizing and summarizing collected data

The Goal of statistics is:

Data is:

Datum is:

Statistics is:

Learn about a large group by examining sample data from its me…

Collections of observations, such as measurements, genders, or…

A single data value is called a datum

The science of planning studies and experiments; obtaining dat…

The Goal of statistics is:

Learn about a large group by examining sample data from its me…

Data is:

Collections of observations, such as measurements, genders, or…

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Population

Sample

Parameter

Statistic

The entire set of existing units that investigators wish to st…

A portion or subset of the population

A number that describes a population characteristic

A number that describes a sample characteristic

Population

The entire set of existing units that investigators wish to st…

Sample

A portion or subset of the population

PRODUCT

no effect

1/2 x 1/2 = 1/4

1/2 x 1/2 x 1/2= 1/8

If two events are independent, the chance they BOTH happen is…

Two events (A and B) are independent if the occurrence of even…

Toss a dime and a nickel. What is the chance both coins land o…

A coin is tossed 3 times, what's the chance of getting a H, th…

PRODUCT

If two events are independent, the chance they BOTH happen is…

no effect

Two events (A and B) are independent if the occurrence of even…

Different types of hypothesis testing a…

t-Test Test Statistic

Z-Test Test Statistic

Two variable Z-Test Test Statistic

z-test (one sample): when comparing population to a single num…

(sample statistic-#)/SE+

(sample statistic-#)/SE

(Sample A statistic-Sample B statistic)/SEdiff

Different types of hypothesis testing a…

z-test (one sample): when comparing population to a single num…

t-Test Test Statistic

(sample statistic-#)/SE+

Confounder

Simpson's Paradox

Weighted Average

Causation

A third variable, associated with both the treatment and the r…

When relationships between percentages in subgroups are revers…

A technique for computing an average rate that takes into acco…

A definitive relationship that can be established only with co…

Confounder

A third variable, associated with both the treatment and the r…

Simpson's Paradox

When relationships between percentages in subgroups are revers…

individual

variable

quantitative variable

categorical (qualitative) variable

An object about which data are collected

A characteristic of an individual that is of interest to the r…

A variable with numeric value that has meaning and for which a…

A variable with word descriptors that reflect the classificati…

individual

An object about which data are collected

variable

A characteristic of an individual that is of interest to the r…

Data

Statistics

Population

Sample

A fact or proposition used to draw a conclusion or make decisi…

The science of collecting, organizing, summarizing, and analyz…

The entire group of individuals to be studied is called the po…

is a subset of the population being studied.

Data

A fact or proposition used to draw a conclusion or make decisi…

Statistics

The science of collecting, organizing, summarizing, and analyz…

Data

Statistics

Population

Sample

A fact or proposition used to draw a conclusion or make decisi…

The science of collecting, organizing, summarizing, and analyz…

The entire group of individuals to be studied is called the po…

is a subset of the population being studied.

Data

A fact or proposition used to draw a conclusion or make decisi…

Statistics

The science of collecting, organizing, summarizing, and analyz…

Data

Statistics

Population

Sample

A fact or proposition used to draw a conclusion or make decisi…

The science of collecting, organizing, summarizing, and analyz…

The entire group of individuals to be studied is called the po…

is a subset of the population being studied.

Data

A fact or proposition used to draw a conclusion or make decisi…

Statistics

The science of collecting, organizing, summarizing, and analyz…

Data

Statistics

Population

Sample

A fact or proposition used to draw a conclusion or make decisi…

The science of collecting, organizing, summarizing, and analyz…

The entire group of individuals to be studied is called the po…

is a subset of the population being studied.

Data

A fact or proposition used to draw a conclusion or make decisi…

Statistics

The science of collecting, organizing, summarizing, and analyz…

Population

Parameters

Sample

Statistics

Tickets in the box

Describes the percentage or average of the box

A small group of subjects gathered from a larger population

A numerical value measured from a sample

Population

Tickets in the box

Parameters

Describes the percentage or average of the box

Different types of hypothesis testing a…

t-Test Test Statistic

Z-Test Test Statistic

Two variable Z-Test Test Statistic

z-test (one sample): when comparing population to a single num…

(sample statistic-#)/SE+

(sample statistic-#)/SE

(Sample A statistic-Sample B statistic)/SEdiff

Different types of hypothesis testing a…

z-test (one sample): when comparing population to a single num…

t-Test Test Statistic

(sample statistic-#)/SE+

IRB & Purpose

Statistics

Confounding

Lurking variable

Institutions Review Board. Ensure patients are treated ethical…

The science of data. It is often more art than data. How we de…

the effects of two or more variables are not separated.

not considered in original study.... Ex- Smokers eat more sugar.…

IRB & Purpose

Institutions Review Board. Ensure patients are treated ethical…

Statistics

The science of data. It is often more art than data. How we de…

What is the main difference between qua…

What do parameters describe?

What is a statistic?

What a Simple Random Sample (SRS)?

Quantitative variables can be averaged while categorical varia…

Population characteristics

A number that describes a sample

Size (n) consists of (n) individuals from the population chose…

What is the main difference between qua…

Quantitative variables can be averaged while categorical varia…

What do parameters describe?

Population characteristics

Types of knowledge

objectivity

skepticism

open mindedness

-personal experience (not reliable)... -rationalism (reliable but…

supporting evid must be observable by anyone

claims must be backed up by evidence and critically evaluated

open to new evidence & replication

Types of knowledge

-personal experience (not reliable)... -rationalism (reliable but…

objectivity

supporting evid must be observable by anyone

descriptive statics

inferential statistics

qualitative data

quatitative data

included organizations, summeration, graph/table/display.

make conclusion about the populations (using sample)

names, labels, attributes - can't do anything with it, list

measurment or counts, - Zip code, ssn , ex: how many

descriptive statics

included organizations, summeration, graph/table/display.

inferential statistics

make conclusion about the populations (using sample)

Why Stats?

Descriptive statistics

Inferential statistics

Difference between Inferential & Descri…

- Used to make sense of data collected ... - Provide a quantitive…

Statistical procedures that are used to describe different num…

Statistical procedures that allow researchers to determine whe…

Descriptive statistics are used objectively, to do with the me…

Why Stats?

- Used to make sense of data collected ... - Provide a quantitive…

Descriptive statistics

Statistical procedures that are used to describe different num…

Observational Studies

Sample Surveys

Census

Experiments

Try to gather information without disturbing the scene they ar…

Chooses a sample from a specific population and uses the sampl…

Attempts to measure every individual in a population

Goal is to learn whether some treatment actually causes a cert…

Observational Studies

Try to gather information without disturbing the scene they ar…

Sample Surveys

Chooses a sample from a specific population and uses the sampl…

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Year the LVT profession began to take f…

LVT's were first called what?

The adjective "veterinary" referred exc…

There are over ___ (AVMA) accredited pr…

early 1960's

Animal Health Technicians

1989; AVMA House of Delegates

200

Year the LVT profession began to take f…

early 1960's

LVT's were first called what?

Animal Health Technicians

Randomized controlls

Placebo

Double-blind controls

what is the best design of controlled e…

A random process (like a coin flip) assigns subjects to treatm…

A neutral agent that resembles the treatment but lacks the act…

When neither subjects nor those who evaluate the response know…

randomized controlled double-blind experiment

Randomized controlls

A random process (like a coin flip) assigns subjects to treatm…

Placebo

A neutral agent that resembles the treatment but lacks the act…

Graph

Line graph

Pie Graph

Bar Graph

A visual aid used to show statistical trends and patterns

A graph that uses one or more lines to show changes in statist…

A graph that highlights segments of a circle to show simple di…

A graph that uses vertical or horizontal bars to show comparis…

Graph

A visual aid used to show statistical trends and patterns

Line graph

A graph that uses one or more lines to show changes in statist…

Statistical Study

Variables

Most Important Stat. Fact

Observational Studies

is any study that records data about individuals.

are values that are given to individuals during studies that a…

is how the data was produced.

try to gather information without disturbing the scene they we…

Statistical Study

is any study that records data about individuals.

Variables

are values that are given to individuals during studies that a…