The statistical hypothesis for a test on a mean is given below, as well as the reduced difference obtained for this test.

H0: m = 180

H1: m 180

n = 25

Reduced deviation t = 1.47

Determine the descriptive threshold, ap

On donne ci-aprs l'hypothse statistique pour un test sur une moyenne ainsi que l'cart-rduit obtenu pour ce test.

H0 : m = 180

H1 : m 180

n = 25

cart-rduit t = 1,47

Dterminez le seuil descriptif, ap