The average salary for all 27 arizona diamondbacks in the 2012 baseball season was $2,653,029, with a standard deviation of $2,587,139. the population, all national league baseball players in 2012, earned an average salary of $3,213,479, with a standard deviation of $1,451,308. you want to find out if the average salary of the diamondbacks players differs from that of all players in the national league. what statistical analysis is used to answer this question?

Required: 1-a. the marketing manager argues that a $5,000 increase in the monthly advertising budget would increase monthly sales by $9,000. calculate the increase or decrease in net operating income. 1-b. should the advertising budget be increased ? yes no hintsreferencesebook & resources hint #1 check my work 8.value: 1.00 pointsrequired information 2-a. refer to the original data. management is considering using higher-quality components that would increase the variable expense by $2 per unit. the marketing manager believes that the higher-quality product would increase sales by 10% per month. calculate the change in total contribution margin. 2-b. should the higher-quality components be used? yes no