The amount of time full-time employed Americans spend daily on working and work related activities is normally distributed with a mean of 6.27 hours and a standard deviation of 0.52 hours. What proportion of full-time employed Americans spend less than 7.5 hours daily on working and work related activities? The z-score is blank1 - Numeric Answer Type your answer here and the proportion is blank2 - Numeric Answer Type your answer here . Round z-score to 2 decimal places and report proportion to 4 decimal places