Assume that X has a Normal distribution with a mean of -1.32 and a standard deviation of 0.34. Use the standard Normal table to find the following cut-off values for X. Also sketch a standard Normal curve, and shade the region corresponding to the given probability.
a. What is the cut-off for the top 5% of X values?
b. What is the cut-off for the bottom 10% of X values?
c. What are the boundaries for the middle 50% of X values?