types of data
This type of data can be categorized based on attributes or properties
what is qualitative data?
this measure represents the average of a data set
what is the mean
this sampling technique selects individuals based on random selection, giving each member of the population an equal chance of being chosen
what is random sampling
this is a statement that can be tested and is typically formulated as a claim about a population parameter
what is a hypothesis
this branch of statistics involves summarizing and organizing data to describe its main features
what is descriptive statistics
this type of data consists of numerical values that can be measured
what is quantitative data
this measure indicated the middle value when data is stored in ascending order
what is the median
this method divides the population into subgroups and randomly selects samples from each subgroup
what is stratified sampling
this statistical test is used to compare means from two independent groups
what is a t-test
this branch of statistics makes predictions or inferences about a population based on a sample
what is inferential statistics
these two types of qualitative data involve ordered categories and nominal categories, respectively
what are ordinal and nominal data
this measure represents the most frequently occurring value in a data set
what is the mode
in this sampling technique, individuals are selected based on their availability or ease of access
what is convenience sampling
this is the threshold p-value commonly used to determine statistical significance
what is 0.05
this measure includes the mean, median, range, and mode as summary statistics
what are measures of central tendency
this type of qualitative data has a true zero point and allows for a wide range of mathematical operations
what is ratio data?
this measure indicates how extreme the outliers are in a data set
what is the range
this method involves selecting samples based on certain characteristics
what is non-random sampling
this is the hypothesis that there is no effect or no difference
what is the null hypothesis
this statistical technique estimates population parameters and tests hypotheses using sample data
what is inferential statistical analysis
this qualitative data type represents categories that do not have a natural order
this measure indicated how spread out the values in the data set are
what is standard deviation
in this sampling technique, the researcher divides the population into clusters and randomly makes a selection
what is cluster sampling
this type of error occurs when a true null hypothesis is incorrectly rejected
what is type 1 error
this type of graph provides a quick overview of data distribution without making inferences beyond the sample
what is a descriptive graph