The t-test
The t-test
Outline
Definitions
Descriptive vs. Inferential Statistics
The t-test
- One-sample t-test
- Dependent (related) groups t-test
- Independent (unrelated) groups t-test
Comparing means
? Correlation and regression look for
relationships between variables
? Tests comparing means look for differences
between the means of two or more samples
? General null hypothesis: the samples come
from the same population
? General research hypothesis: the samples
come from different populations
Choosing a statistical test: normality
? There are two sets of statistical tests for
comparing means:
C Parametric tests: work with normally distributed
scale data
C Non-parametric tests: used with not normally
distributed scale data and with ordinal data
Choosing statistical tests:
how many means?
? Within parametric and non-parametric tests
C some work with just two means
C others work with more than two means
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.
Related download
- confidence intervals t tests p values
- hypothesis testing with t tests university of michigan
- statistics project hypothesis testing
- type i and type ii errors department of statistics
- t test formula summary sheet peggy s website
- chapter 6 the t test and basic inference principles
- types of statistical tests university of phoenix
- the t test in ibm spss statistics
- a very brief intro to statistics t tests
- t table san jose state university
Related searches
- t test critical value calculator
- t test statistic calculator
- t test p value calculator
- t test calculator p value
- t test calculator for percentages
- t test for population mean calculator
- t test critical value table
- independent t test statistic calculator
- excel t test p value
- t test calculator
- single sample t test calculator statistics
- t test critical values table