Answer:
Following are the answer to this question:
Step-by-step explanation:
Given:
n = 30 is the sample size.
The mean 
= 7.3 days.
The standard deviation = 6.2 days.
df = n-1
The importance level is 
= 0.10
The table value is calculated with a function excel 2010:
The method for calculating the trust interval of 90 percent for the true population means is:
Formula:
It can rest assured that the true people needs that middle managers are unavailable from 5,37 to 9,23 during the years.
Answer:
there will be 19 $100 bills
and 11 $10 bills
Step-by-step explanation:
It will be
3 4/14+2 3/14+4 6/14=9 13/14
Answer:
640 units squared
Step-by-step explanation:
The shape below is a trapezoid.
The formula for the area of a trapezoid is average of the bases times the height.
The bases are the parallel lines that make up 2 of the sides of the trapezoid.
The height is the line dotted line that creates right angles and is the distance between the two bases.
The bases are 24 and 40.
To find the average, we add them together and divide by 2
(24+40)/2=64/2=32
Now, we multiply 32 by the height, which is given as the length of 20.
32*20=640
the area of the trapezoid is 640 units squared
Hope this helps!
