behrens-fisher problem
Word Rarity
Very rare
Frequency: Zipf frequency 2.28 in modern English
37
Scrabble Score
20
Letters
6
Syllables
12
Unique Chars
Meaning
noun
The problem of interval estimation and hypothesis testing concerning the difference between the means of two normally distributed populations when the variances of the two populations are not assumed to be equal, based on two independent samples.