Paper 1 · Research Aptitude
UGC NET June 2024 Re-Exam (02.09.2024) Shift-II
Let H0 be the null hypothesis, Ha the alternate hypothesis, mu the population mean and mu-H0 the hypothesized mean. A researcher sets H0: mu = mu-H0 and Ha: mu < mu-H0. In this situation, the researcher would apply:
ARight-tailed test
BLeft-tailed test ✓ Correct
CTwo-tailed test
DHalf-tailed test
Correct answer: (B) Left-tailed test — A left-tailed test is applied, so that is the answer.
Explanation
★A left-tailed test is applied, so that is the answer.
★The alternate hypothesis states mu is less than the hypothesized mean.
★The rejection region lies in the left tail.
★So the test is one-tailed to the left.
★This is the left-tailed test.
★Hence left-tailed test is correct.
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