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DATTestUnequal

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Function Description

Returns the results of an approximate Student’s t test applied to two separate series to test if their means are different, under the null hypothesis that the data is normally distributed and that the two series do not necessarily have the same (unknown) variance.

 

The output has 10 rows and 2 columns (ignore second column entry for Rows 4 to 10):

 

-          Row 1: Mean (of series)

-          Row 2: Variance (of series)

-          Row 3: Number of entries in series

-          Row 4: Hypothesized Mean Difference

-          Row 5: degrees of freedom in Student’s t test

-          Row 6: t statistic

-          Row 7: P-value of this t statistic (one tail)

-          Row 8: t critical level (one tail), for given confidence level

-          Row 9: P-value of this t statistic (two tail)

-          Row 10: t critical level (two tail), for given confidence level

 


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