Answer: 20
Step-by-step explanation:
Given : An IQ test is designed so that the mean is
and the standard deviation is
for the population of normal adults.
Significance level : ![1-0.99=0.01](https://tex.z-dn.net/?f=1-0.99%3D0.01)
Critical value : ![z_{\alpha/2}=2.576](https://tex.z-dn.net/?f=z_%7B%5Calpha%2F2%7D%3D2.576)
Margin of error : ![E=8](https://tex.z-dn.net/?f=E%3D8)
Standard deviation : ![\sigma= 14](https://tex.z-dn.net/?f=%5Csigma%3D%2014)
The formula to find the sample size : -
![n=(\dfrac{z_{\alpha/2}\ \sigma}{E})](https://tex.z-dn.net/?f=n%3D%28%5Cdfrac%7Bz_%7B%5Calpha%2F2%7D%5C%20%5Csigma%7D%7BE%7D%29)
![\Rightarrow\ n=(\dfrac{(2.576)(14)}{8})^2=20.322064\approx20](https://tex.z-dn.net/?f=%5CRightarrow%5C%20n%3D%28%5Cdfrac%7B%282.576%29%2814%29%7D%7B8%7D%29%5E2%3D20.322064%5Capprox20)
Hence, the minimum reasonable sample size for a real world calculation must be 20
In my opinion the answer is <span>m2 – 100 = –99
proof
</span>m2 – 100 =<span>(m – 10)(m + 10)
for eg. m=1, </span>(-9)(11)= <span>–99</span>
In the context of the given function, 15 here means that the value of p(t) which may be read as "p of t" increases by 15 every time the value of t is increased. This means that t is the independent variable and p(t) is the dependent variable.
82 Maby?... I actually dont think this is correct. I just added the numbers on the surface.
It is 2+2=4 because 2 is doubled