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.
![\overline{x}-E=0.226------(1)\\\\\overline{x}+E=0.604--------------(2)](https://tex.z-dn.net/?f=%5Coverline%7Bx%7D-E%3D0.226------%281%29%5C%5C%5C%5C%5Coverline%7Bx%7D%2BE%3D0.604--------------%282%29)
Adding (1) from (2), we get
![2\overline{x}=0.83\\\\\Rightarrow\ \overline{x}=0.415](https://tex.z-dn.net/?f=2%5Coverline%7Bx%7D%3D0.83%5C%5C%5C%5C%5CRightarrow%5C%20%5Coverline%7Bx%7D%3D0.415)
From (2),
![0.415+E=0.604\\\\\Rightarrow\ E=0.604-0.415=0.189](https://tex.z-dn.net/?f=0.415%2BE%3D0.604%5C%5C%5C%5C%5CRightarrow%5C%20E%3D0.604-0.415%3D0.189)
Hence, the point estimate of the population is 0.415 round to the nearest thousandth as needed.the margin error is 0.189 .
4,734 is the answer because I used my calculator XD
Answer:d
Step-by-step explanation:
60x24=1440 1440x365=525600 525600x2000=1,051,200,000 about 2000 years