z-Test of Two Population Means? According to Bankrate.com, a navigation system is an expensive option that does not enhance the resale value of an automobile (Bankrate.com website, February 11, 2013). Use the data file CorollaNavigation to determine if the presence of a navigation system increases the resale value of automobiles. Assume a known population standard deviation of 2,000 for both populations.Test at ?= 0.05 Follow the six-step hypothesis testing process CorollaNavigation Chart With Navigation System Without Navigation Systema. Ho: ?A ? ?H Ha: ?A < ?Hb. ? = 0.05c. CV of z for this lower-tail test = -1.645d. Interface and output (you need only provide the output):e. -1.81 is less than -1.645; reject Ho 0.0352 < 0.05; reject Hof. At a 95% confidence level, I can conclude that the mean hotel room price in Atlanta is lower than the mean hotel room price in Houston.