Please answer this question.

-/2 POINTS BBUNDERSTAT11 6.5.010. MY NOTES Consider an x distribution with standard deviation 0 = 15. (a) If specifications for a research project require the standard error of the corresponding x distribution to be 3, how large does the sample size need to be? n = (b) If specifications for a research project require the standard error of the corresponding x distribution to be 1, how large does the sample size need to be? n =