119.434783 1 significant figure
1 answer:
You might be interested in
Answer:
a) reject, b) accept
Step-by-step explanation:
We assume one sided test, and by looking at a t table which is one sided we can get the p values.
We have:
α = 0.01
a) µ > 0.5, n = 26, T = 2.485
we have degrees of freedom
n = 26 so
now we look at the table in row which index is 25 and see the closest number to we can find.
We find that number to be exactly 0.01 which is exactly equal to the critical value α, unfortunately 0.01 is not greater than 0.01 so we have to reject the hypotesis.
b) µ < 3, n = 18, T = 0.5
we do the same, this time , now we find that the closest value to 0.5 is 0.689, we can not find an exact value!, so what we do is say that the probability lies between the probability of the closest values to our number, looking at the table, 0.257 and 0.689 are the references we have, and their respective probabilities are 0.4 and 0.25,
so we just say that p is between 0.4 and 0.25.
Now we have that either value is greater than α, so we accept the hypotesis
This is how you solve it, and here is the answer!
Answer:
The value in millions of dollars of a downtown office building that cost 12 million dollars to build 20 years ago and depreciated at 9% per year is $1819738.95
Step-by-step explanation:
Cost of building 20 years ago = 12000000
We are given that the cost depreciated at 9% per year
Formula :
Where N(t)= Population after t years
=Initial population=12000000
r= rate of depreciation=0.09
t = 20 years
Substitute the values in the formula:
N(t)=1819738.95
Hence the value in millions of dollars of a downtown office building that cost 12 million dollars to build 20 years ago and depreciated at 9% per year is $1819738.95