Answer:
Step-by-step explanation:
10* is
Answer: The point estimate of the population is 0.415 round to the nearest thousandth as needed.the margin error is 0.189 .
Step-by-step explanation:
Let be the sample mean .
We know that the confidence interval for population mean is given by :-
, where E is the margin of error .
Given : Lower bound of the confidence interval = 0.226
Upper bound of the confidence interval =0.604
i.e.
Adding (1) from (2), we get
From (2),
Hence, the point estimate of the population is 0.415 round to the nearest thousandth as needed.the margin error is 0.189 .
By using BODMAS,
we divide 12/6 first to get 2.
then we solve the multiplication of 6x4 to get 24.
finally, we subtract 2 from 24 to get 22.
Answer:
the surface area of a cone is given by
πr'2+πLr
r=7in L=14in
A=462 in