a. Use Statkey to find the area in the left tail more extreme than z = -1.75 in a standard normal distribution. Sketch the distribution and area by hand and clearly label the axis or include a Statkey pic of the shaded region for full credit. Round your answer to three decimal places. b. The following is a set of hypotheses, some information from a sample, and a standard error from a randomization distribution. Test Ho: p = 0.48 vs H, : p # 0.48 when the sample has n=40, and p =0.39 with SE= 0.08. Find the value of the standardized z-test statistic (z-score). Show work for full credit. Round your answer to two decimal places