Map and Table Calculation

TTEST( ) function

Performs a Student's t-test on a column.

Syntax

TTEST(Value, ValueColumn)

Input

Output

Notes:

• The Student's t-test is calculated according to the following formula:
• The t-test tests whether a sample of n observations with mean comes from a normal distribution with mean μ. It can be used to determine whether or not the means in two sample populations are significantly different.
• The output of the t-test has to be looked up in a table.
• The TTEST function can also be performed through a dialog box, see Column Statistics.
• When the input value is undefined, the value is excluded in the calculation.

Tips:

• The t-test is often used in the hypothesis testing of small sample data sets.
• When the definition symbol = is used, a dependent output column is created; when the assignment symbol := is used, the dependency link is immediately broken after the output column has been calculated.

Usable in

TabCalc, Simple calculators

Examples

Pocket line calculator example:

TabCalc example:

OutCol = TTEST(3.0,InCol)

See also: