question archive A) :Two sample of size 10 and 8 had sample mean 18cm and 12cm with variances 25 and 16
A) :Two sample of size 10 and 8 had sample mean 18cm and 12cm with variances 25 and 16
Subject:StatisticsPrice: Bought3
A) :Two sample of size 10 and 8 had sample mean 18cm and 12cm with variances 25 and 16. Supposing that the samples have been drawn from normal populations. Test H0: µ1= µ2 at 5% level of significance.
B) : Eights pots, growing three barley plants each, were exposed to high tension discharge while nine similar pots were enclosed in an earthed wire cage. The number of tillers (shoots) in each pot was as follows:
Caged: 17, 27, 18, 25, 27, 29, 27, 23, 17.
Electrified: 16, 16, 20, 16, 21, 17, 15, 20.
Discuss whether electrification exercises any real effect on tillers.
