4. Consider the ve-number summary of hourly wages ($) for a sample of sales managers. (2 points each) Min Q1 Median Q3 Max 20.94 37.64 44.77 49.34 6?.11 a. What is the range for these data? b. What is the IQR for these data? 0. Suppose the mean hourly wage is $38.50. What can we say about the shape of the distribution? Explain