Answer: lower bound = 0.7404; upper bound = 0.8596
Step-by-step explanation:
The proportion p for this population:
p = ![\frac{240}{300}](https://tex.z-dn.net/?f=%5Cfrac%7B240%7D%7B300%7D)
p = 0.8
Confidence interval for proportion is calculated as:
p ± z-score.![\sqrt{\frac{p(1-p)}{n} }](https://tex.z-dn.net/?f=%5Csqrt%7B%5Cfrac%7Bp%281-p%29%7D%7Bn%7D%20%7D)
Z-score for a 99% confidence interval is: z = 2.58
Calculating:
0.8 ± 2.58.![\sqrt{\frac{0.8(0.2)}{300} }](https://tex.z-dn.net/?f=%5Csqrt%7B%5Cfrac%7B0.8%280.2%29%7D%7B300%7D%20%7D)
0.8 ± 2.58.![\sqrt{0.00053}](https://tex.z-dn.net/?f=%5Csqrt%7B0.00053%7D)
0.8 ± 2.58(0.0231)
0.8 ± 0.0596
This means that the lower limit of this interval is 0.7404 and upper bound is 0.8596
Answer:
![(b^4)^2 = b^{8}](https://tex.z-dn.net/?f=%28b%5E4%29%5E2%20%3D%20b%5E%7B8%7D)
Step-by-step explanation:
Given
![(b^4)^2](https://tex.z-dn.net/?f=%28b%5E4%29%5E2)
Required
Simplify
In indices, we have:
![(a^m)^n = a^{m*n](https://tex.z-dn.net/?f=%28a%5Em%29%5En%20%3D%20a%5E%7Bm%2An)
So:
![(b^4)^2 = b^{4*2}](https://tex.z-dn.net/?f=%28b%5E4%29%5E2%20%3D%20b%5E%7B4%2A2%7D)
![(b^4)^2 = b^{8}](https://tex.z-dn.net/?f=%28b%5E4%29%5E2%20%3D%20b%5E%7B8%7D)
Answer:
válla si son brutos está bien fácil esa pregunta lo que pasa es que estoy haciendo mi trabajo
Answer:
140/70= 2
35/2= y when x=70
Step-by-step explanation:
Answer:
28 miles
Step-by-step explanation:
To find how many miles per gallon the car has you would just divide the miles by how how many gallons there are.
for your example it would be 336/12 = 28