The wall street journal reported that bachelor's degree recipients with majors in business received average starting salaries of $53,900 in 2012 (the wall street journal, march 17, 2014). the results for a sample of 100 business majors receiving a bachelor's degree in 2013 showed a mean starting salary of $55,144 with a sample standard deviation of $5,200. conduct a hypothesis test to determine whether the mean starting salary for business majors in 2013 is greater than the mean starting salary in 2012. use = .01 as the level of significance.

Okay so for every triangle has three angles that always add up to 180 degrees. and to tell the difference between whether they are secure, right or obtuse is that acute: has one angle that is less than 90 degrees. right triangle means there is at least one angle that is exactly 90 degrees. and an obtuse angle has an angle that is bigger than 180 degrees. i’ll do #13 as an example: 13. 40 and 50 so if every triangle has 180 degrees 40+50= 90 degrees then180-90= 90 degrees so the third angle is 90 degrees and because this triangle has a 90 degree angle it means it is a right triangle