Question 3 The number of days (X) after mailout it takes a utility company to receive payment for a Fill in the blanks by selecting one option from each menu. customer's bill is a normal random variable with a mean of 31 days and a standard deviation of 6 days. 10 points There is a probability of 0.50 that a bill will be received later than -- days after mailout. Question 4 According to the Bureau of Labor Statistics, in May 2014 the mean hourly wage of a social Type numbers in the boxes. worker was 28.08 with a standard deviation of 1.97. Jeronica is a social worker with an hourly 10 points wage of 31.60. What is Jeronica's z-score? (Round your answer to 2 decimal places.)