Answer:
In order to calculate the sample deviation we need to calculate the mean given by:
And replacing we got:
And the standard deviation can be calculated with this formula:
And replacing we got:
Step-by-step explanation:
For this case we have the following data given:
281, 269, 259, 265, 256, 259, 266
The range is defined as:
And if we replace we got:
In order to calculate the sample deviation we need to calculate the mean given by:
And replacing we got:
And the standard deviation can be calculated with this formula"
And replacing we got:
Answer:
4(9a-4)
Step-by-step explanation:
The statistic can't be true because the study was conducted by a major milk manufacturer, they wouldn't want to have a negative outlook on their product since it could lead to a potential loss of market value.
Another reason why this statistic can't be trusted is that we don't know how many or groups of teens were surveyed. They could have gone to their faithful customers for all we know, and/or it could have been more people of one gender to the other or lack of diversity overall.
They could have tried to appeal to parents and teens to drink more milk and that it's healthy to make them buy more of it, lots of companies do that.
Answer:
A
Step-by-step explanation:
It's asking to see how far it will go in 6 seconds, and it's travelling downward.
(a) Net present value of machine
Pm=-C+V/(1+i)^n=37000-1000/1.08^4
=-36264.97
=-36265 (rounded to nearest dollar)
Cost of machine amortized over 4 years (annualized cost)
Ac=Pm(A/P,i,n)=-36264.97(A/P,0.08,4)=-36264.97(.08*(1.08^4)/(1.08^4-1)
=-10949.15
Expected year-end cash flow = annualized return - annualized cost =>
12000=return - 10949.15
(b) Internal rate of return of machine
=return/cost - 1
=(12000-(-10949.15)/10949.15-1
=2.096-1
=1.096
=109.6%
