Answer:
The margin of error is of 0.7123 hours.
Step-by-step explanation:
We have that to find our 
level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of 
.
So it is z with a pvalue of 
, so 
Now, find the margin of error M as such
In which 
is the standard deviation of the population and n is the size of the sample.
Find the margin of error for a confidence interval for the population mean with a 90% confidence level.
We have that 
. So
The margin of error is of 0.7123 hours.
Answer:
$11988
Step-by-step explanation:
Given that,
The unit cost is given by :
We need to find the minimum unit cost.
For minimum cost,
Put 
So,
Put x = 330 in equation (1).
So, the minimum unit cost is equal to $11988.
I got 2782
because I did was multiply 1500 and 5.564 then divided by 3 and got 2782 as my answer
Answer:
Step-by-step explanation:
let’s say each side length is called a, b, and c
to find out if a side length is a solution you have to know that
a < b + c
b < a + c
c < a + b
if all of these are true then the given lengths can be the sides of a triangle
ex:
a = 3, b = 4, c = 5
3 < 4+5
3 < 9
this is true
4 < 3+5
4 < 8
this is true
5 < 3+4
5 < 7
this is true
so these side lengths can make a triangle
however, if one of these inequalities weren’t true (ex: 9 < 4) you wouldn’t be able to make a triangle with the given side lengths
