The number is 2
9 x 2 = 18
18 + 6 = 24
Answer:
A. For the situation presented, we find that the researcher assumes that the test with the new method will obtain results at a cost of less than $ 220.
the null hypothesis will be that the operation of the new method will cost not less than $ 220.
the alternative hypothesis will be that the operation of the new method will be less than $ 220
B. With the situation of the exercise we can affirm that the null hypothesis is not rejected, since the director has verified that the cost of the new method is below $ 220, so the new method can be implemented.
C. For this situation, it is observed that the null hypothesis has been rejected, so after verification, the manager has observed that the cost of the new method is less than $ 220, so the manager's proposal can be developed.
The new hourly rate is $6.15. To find this, you have to set up the rate and percent as x/6=2.5/100. You cross multiply. x times 100 equals 100x. 6 times 2.5 equals 15. It would be written as 100x/100=15/100. You divide by 100 to leave x by itself. 15 divided by 100 equals 0.15. So, x equals $0.15 cents. You add 6 and 0.15. Together, they add up to $6.15. Hoped this helps!
6/25 is your answer because you just add them up and take the 6
