Find the following probabilities based on the standard normal variable Z. (You may find it useful to reference the z table. Round your answers to 4 decimal places.) How would each of the following likely affect the real wage and employment of unskilled workers on an automobile plant assembly line? a. Demand for the type of car made by the plant increases. The real wage and employment decrease. The real wage increases and employment decreases. The real wage decreases and employment increases. The real wage and employment increase. b. A sharp increase in the price of gas causes many commuters to switch to mass transit. The real wage and employment decrease. The real wage increases and employment decreases. The real wage decreases and employment increases. The real wage and employment increase. c. The plant management introduces new assembly-line methods that increase the number of cars unskilled workers can produce per hour while reducing defects. The real wage decreases and employment increases: The real wage and employment increase. The real wage increases and employment decreases. The real wage and employment decrease