You check the statistics for the National Hockey League (NHL) and write down the average (mean) number of minutes each player spends on the ice as well as the standard deviation. You note that your favourite player's time on the ice was 24 minutes and calculate this is 1.2 standard deviations above the mean. A friend asks you what the mean was but you cannot remember, but you do recall that the standard deviation was 3.7. What is the mean number of minutes played by hockey players in the NHL?