what's the t-test used for in educational tests is an examination score truncated what is normal distribution of scores what is the distribution of exam scores what does normal t distribution mean can you use a t-test to compare exam scores why do scores follow a normal distribution when should i t-test scores be truncated what is the normal distribution of a t test what is the normal distribution in a exam scores is a t-test a normal distribution do educational examination scores conform with their normal distribution what is the difference between test scores and normal distributions is the t-test the same as a normal distribution? what is the normal distribution in exams how do scores differ in an exam what is the normal distribution of a score which is the proper distribution for test scores in education what is normal distribution of school grade what is the usual distribution of a school exam score