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