Answer:
The correct option is:
A. We are 95% confident that the interval from 55.4 seconds to 61.2 seconds actually does contain the true value of μ.
Explanation:
In statistics, confidence interval is the interval estimate about the population parameter of interest at certain level of confidence like 95%. A 95% confidence interval gives us a range of values that we can be 95% confident contains the true mean of the population.
Therefore, the option A is correct
Answer:

Step-by-step explanation:
We have,
Height of a cone is 12 feet
Volume of the cone is 90 feet
It is required to find the area of the base of the cone.
The base of a cone is circular in shape.
The formula used to find the volume of a cone is given by :

here,
(area of base of cone)

So, the area of the base of the cone is
.
That equation has no solutions.
Answer:I dont understand but if your asking the definition then.
Step-by-step explanation: A quotient is the answer you get after dividing one number by another, and compatible numbers are numbers that are close to the numbers in question yet can divide one another easily.
Answer:4
Step-by-step explanation:
B) -7x-2x= -20-16
-9x= -36
X= -36 /-9
X= 4