The standard normal tables show that the area below Z= -1.82 is equal to 0.0344.

A population of office workers commuting by bus to a central business district location has trips on a particular day with an average of 45 minutes and a standard deviation of 16.5 minutes. It is found that there is a 3.44% chance that a sample from this population has a journey time less than 42 minutes. What is the sample size?

Give you answer correct to the closest integer.