RESEARCH METHODOLOGY

Detailed explanation-1: -T = (X̄ – ) / S/√n At a level of significance of 0.05, the T-value for a right-tailed test comes out to be 1.75305. Since the calculated T-value of 5.33 is much larger than the critical value of 1.75305, the null hypothesis can be rejected.

Detailed explanation-2: -It can be a left-tailed test or a right-tailed test. Left-tailed test: The critical region is in the extreme left region (tail) under the curve. Right-tailed test: The critical region is in the extreme right region (tail) under the curve.

Detailed explanation-3: -For example, H0: there is no difference in taste between coke and diet coke against H1: there is a difference. 2. If one of the two hypotheses is ‘simpler’ we give it priority so that a more ‘complicated’ theory is not adopted unless there is sufficient evidence against the simpler one.