When we test for the differences between percentages for two groups the null hypothesis is that the difference in the two group's population parameters is over 30

Performance measures in a supply chain:

A) are viewed mostly by finance. B) are not used once a process is automated. C) must be measurements of one parameter only. D) concentrate on cost only. E) should be objective.

Samuel's average tax rate for 2014 is closest to which of the following?

Samuel Ahn recently graduated from college and started working in a promising career field. He has a little money invested in a stock that pays no dividends. He lives in an apartment, is single, and has no dependents. He has a $22,000 student loan balance and he paid $800 interest in 2014. He is considering going back to school part-time for some additional computer classes. He does not have a personal IRA, and he contributed 2 percent of his $39,500 salary to his employer's 401(k) plan in 2014. As he completes his tax return for 2014, use the information above and below to help him answer the following questions. Standard deduction for 2014: $6,200 Personal exemption for 2014: $3,950 Tax brackets for 2014: Taxable income range Tax rate Up to $9,075 10 percent More than $9,075 but under $36,900 15 percent More than $36,900 but under $89,350 25 percent A) 10% B) 15% C) 12.5% D) 25%