The average salary for all 27 arizona diamondbacks in the 2005 baseball season was $2,308,488, with a standard deviation of $3,427,508. the population, all national league baseball players in 2005, earned an average salary of $2,585,804, with a standard deviation of $3,500,708. does the average salary of the diamondbacks players differ from that of all players in the national league? what statistical analysis would we use to answer this question?