Chapter 13 Statistics

"42 percent of all people living in New York State have type O+ blood." Is the statement descriptive statistics or inferential statistics?

inferential

"42 percent of the people in New York City have O+ blood." Is the statement descriptive statistics or inferential statistics?

descriptive

descriptive analytics

the summarization of data

data analysis

the task of transforming, summarizing, or modeling data to allow the user to make meaningful conclusions

dashboard

the visual display, on a single screen, of the most important information that a physician would need to see about his patients

clinical data warehouse

A collection of data that reflects all aspects of hospital operations that is used for reporting and analysis.

Chi-square

A test of significance represented by X2 that deals with nominal data and frequencies, specifically data where the standard deviation and mean are not meaningful descriptions

standard error of the mean

A value that is found by taking many large samples, calculating the mean for each sample, and then finding the standard deviation of all the sample means

prescriptive analytics

Allows users to prescribe a number of different possible actions.

A vendor developing a new computer software system is providing a display of the current important information that physicians may need to know when working with stroke patients. This is called a ______________.

Dashboard

The process of extracting and analyzing large volumes of data from a database for the purpose of identifying new information is called ___________________.

Data mining

real-time analytics

Data that can be accessed as it comes into a computer system.

The term that describes the use of most current scientific research to treat patients is referred to as ______________.

Evidence-based medicine

A managed care organization plans to create a database that could be used by several healthcare facilities to compare their readmission rates to each other. This is an example of ____________.

External data

The standard error of the mean comes from the standard deviation of many population means. True/False

False

data analytics

The science of examining raw data with the purpose of drawing conclusions about that information

confidence interval

a healthcare statistic that is calculated from the standard error of the mean, it is an estimate of the true limits within which the true population mean lies; the range of values that may reasonably contain the true population mean

null hypothesis

a hypothesis that states there is no association between the independent and dependent variables in a research study

t-test

a test of the null hypothesis to determine if a set of results is statistically significant

predictive analysis

branch of data mining concerned with the prediction of future probabilities and trends

big data

massive amounts of information that can be interpreted by analytics to provide an overview of trends or patterns

Type II error

occurs when the null hypothesis is not rejected, yet it is false

type I error

occurs when the null hypothesis is rejected, yet it is actually true

inferential statistics

statistics that are used to make inferences from a smaller group of data to a larger one

descriptive statistics

statistics that describe populations

Analysis of variance

test used to assess the differences among more than two means