Verse 3:81, among many other verses, provides the definitions of Nabi (Prophet) and Rasoul (Messenger). Nabi is a messenger of God who delivers a new scripture, while Rasoul is a messenger commissioned by God to confirm existing scripture.Some messengers deliver a new scripture and in that case they are also prophets, but many other messengers do not deliver a new scripture.erse 3:81, among many other verses, provides the definitions of Nabi (Prophet) and Rasoul (Messenger). Nabi is a messenger of God who delivers a new scripture, while Rasoul is a messenger commissioned by God to confirm existing scripture.
What is a 'T-Test'. A t-test is an analysis of two populations means through the use of statistical examination; a t-test with two samples is commonly used with small sample sizes, testing the difference between the samples when the variances of two normal distributions are not known.
A t-test can be used to account for the uncertainty in the sample variance when the sample size is small and the data are exactly normal. There is no universal constant at which the sample size is generally considered large enough to justify use of the plug-in test. Typical rules of thumb range from 20 to 50 samples. For larger sample sizes, the t-test procedure gives almost identical p-values as the Z-test procedure. Other location tests that can be performed as Z-tests are the two-sample location test and the paired difference test.