Answer:
8
Step-by-step explanation:
401.92 divided by 16 = 25.12
25.12 divided by 3.14 is 8
Answer:
Step-by-step explanation:
Whenever you add two number x and -x and it becomes 0 . IT is the identity property.
Ex:
-1/3 + 1/3 = 0
-1 + 1 = 0
-58 + 58 = 0
Step-by-step explanation:
Answer:
RESPUESTA: 700
Step-by-step explanation:
El problema dise que el tenía 200 y su mamá 100 más no dise que le dio sus tíos le dieron mil y el tenía otros 500 y la pregunta en si dise
cuantos tenía. Se refiere a pasado y no a cuanto tiene actualmente.
Así que 200 más 500 igual a $700
Answer:
The 80% confidence interval would be given by (0.339;0.401)
Step-by-step explanation:
Previous concepts
A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".
The margin of error is the range of values below and above the sample statistic in a confidence interval.
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
Solution to the problem
For this case the estimated proportion of interest would be ![\hat p =\frac{149}{403}= 0.370](https://tex.z-dn.net/?f=%5Chat%20p%20%3D%5Cfrac%7B149%7D%7B403%7D%3D%200.370)
In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 80% of confidence, our significance level would be given by
and
. And the critical value would be given by:
The confidence interval for the mean is given by the following formula:
If we replace the values obtained we got:
The 80% confidence interval would be given by (0.339;0.401)