A one-sided test is supposed to carry out a significance test of the initial mean (h) equals five versus the alternative mean (h) is less than five. The sample size is n equals 20 and the obtained t-value is t equals 1.81. What is the conclusion of the test at a significance level of 0.05?
1) Reject the null hypothesis and conclude that the mean is less than five
2) Fail to reject the null hypothesis and conclude that the mean is equal to five
3) Cannot determine the conclusion based on the given information
4) None of the above
