One day, a gifted graduate student in Saitama University's science department, Himuro Ayame, confesses her feelings to Yukimura Shinya. However, as neither of them have any experience with romance, they are worried as to whether it truly is love or not. They decide to discover "the standard conditions of love" so that they can judge each other's feelings by them. Even as their underclassman in the lab, Kanade, throws up her hands in exasperation, Yukimura and Himuro attempt to quantitatively measure "thrilling palpitations of love" by taking their heart rates while performing actions such as "kabedon," "chin-lift," and "sleeve-roll," but...
A null-hypothesis is a type of hypothesis 
which appears in statistics
فرضيّة العدم هي فرضيّة نجدها في علم الإحصاء
Die Nullhypothese ist ein Begriff aus der Statistik
Una hipótesis nula
es una que aparece en estadísticas
Una hipótesis nula
es una que aparece en estadísticas
Une hypothèse nulle,
en statistique,
Un'ipotesi nulla è un tipo di ipotesi
che compare in statistica,
A hipótese nula é um tipo de hipótese
que se ursa em estatística
Нулевая гипотеза в статистике — 
это такая гипотеза,