a. Use Excel to find the 1-sided critical values for 0.025 and 0.05 in the standard normal. b. Considering the results from part a, give the 2-sided critical values for 0.05 and for 0.10 in the standard normal. Briefly explain your answers. c. Use Excel to find the 1-sided critical values for 0.025 and 0.05 in the t with 35 degrees of freedom. Briefly explain, using the t distributions, why these values are greater than the corresponding values from part a. d. Consider the probabilities, 0.001 and 0.005. In the standard normal, will the 1-sided critical value for 0.001 be greater than or less than the 1-sided critical value for 0.005? Briefly explain your answer.