In a study of parking time, a random sample of 10 drivers were asked to parallel park two cars having very different wheel bases and turning radii. The time in seconds for each driver was recorded and analyzed in Minitab. The output is given below. Estimation for Paired Difference (Car_2 - Car_1) Mean SIDev SEMean 1.6 1.673 0.520 Let u_d be the population mean difference of parking time (Car_2 - Car_1). At 5% significance level do the data provide sufficient evidence to conclude that the parking time for car 2 is significantly higher than that of car 17 Assume that the population of the differences is normally distributed. a. What are the signs of the null and the alternative hypotheses of the test for this problem? (use only the signs: , =, not equal, >=,