Answer:the answer is b
Step-by-step explanation:
i cant really explain how i know its kind of second natural to me now
Answer:
a) Standard error = 0.5
b) 99% Confidence interval: (19.2125,21.7875)
Step-by-step explanation:
We are given the following in the question:
Population mean = 20.50 mpg
Sample standard deviation = 3.00 mpg
Sample size , n = 36
Standard Error =

99% Confidence interval:

Putting the values, we get,


Answer:
Step-by-step explanation:
Answer:
60 squaer feet
So lets seperate the shapes one for the bottom small chunk and one for hte big long large top chunk.
To find area you do height times width. So the bottom would be 3 times 4 which is 12 square feet.
Now the top part would be 4+4+4 which is 12 then times that by 4 and get 48.
Now you add 48 and 12 and you get 60 square feet!
Triangle BCG or d I'm pretty sure . Hope I'm right :)