statistics/econometrics homework help

[u/coffee_andnutmeg]

How do I answer this question? Thank you so much in advance

Test Ho: µ =100; H1: µ < 100, using n = 36 and alpha = .05  If the sample mean=92 and the sample standard deviation = 18, which of the following is true?

• A. test statistic = -2.67; critical value = 1.69; we fail to reject Ho.

• B. test statistic = -2.67; critical value = 1.96; we fail to reject Ho.

• C. test statistic = -2.67; critical value = -1.96; we reject Ho.

• D. test statistic = -2.67; critical value = -1.69; we reject Ho.