Quiz 2 - Version 1 STAB23 - Introduction to Statistics for Social Sciences Full name: Student Number: (10 marks) One-way commutes to a workplace have a normal distribution with mean 25.5 minutes and standard deviation 6.1 minutes. The workplace has less than a hundred em- ployees. a What proportion of commutes are longer than 30 minutes? b What proportion of commutes are between 15 minutes and 30 minutes