The method that is not correct is brandon's method.
Respuesta:
seran 2.85
Explicación paso a paso:
espero te sirva ❤️
Answer:
Option A) 1.68
Step-by-step explanation:
We are given the following in the question:
Sample size, n = 100
p = 15% = 0.15
Number of bags overfilled , x = 21
First, we design the null and the alternate hypothesis
Formula:
![z = \dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}](https://tex.z-dn.net/?f=z%20%3D%20%5Cdfrac%7B%5Chat%7Bp%7D-p%7D%7B%5Csqrt%7B%5Cdfrac%7Bp%281-p%29%7D%7Bn%7D%7D%7D)
Putting values, we get,
![z = \dfrac{0.21-0.15}{\sqrt{\dfrac{0.15(1-0.15)}{100}}}\\\\z = 1.68](https://tex.z-dn.net/?f=z%20%3D%20%5Cdfrac%7B0.21-0.15%7D%7B%5Csqrt%7B%5Cdfrac%7B0.15%281-0.15%29%7D%7B100%7D%7D%7D%5C%5C%5C%5Cz%20%3D%201.68)
Thus, the correct answer is
Option A) 1.68
1-
Answer:
12
Explanation:
Let’s divide the shape into two triangles and a rectangle.
triangle area = base x height /2
= 2 x 4 /2
= 8 / 2
= 4
The other triangle is identical, so also 4.
Rectangle area = length x width
= 1 x 4
= 4
Add them: 4 + 4 + 4 = 12, which is the total area.