The correct answer is B, scarcity. There is unlimited number of demands, and a limited number of supply.
Answer:
Step-by-step explanation:
The answer I got was 15/75
Answer:
The value of the test statistic is 0.4.
Step-by-step explanation:
The value of the test statistic is given by:
Our test statistic is:
![t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}](https://tex.z-dn.net/?f=t%20%3D%20%5Cfrac%7BX%20-%20%5Cmu%7D%7B%5Cfrac%7B%5Csigma%7D%7B%5Csqrt%7Bn%7D%7D%7D)
In which X is the sample mean,
is expected mean,
is the standard deviation and n is the size of the sample.
Using traditional methods, it takes 8.1 hours to receive a basic flying license.
This means that ![\mu = 8.1](https://tex.z-dn.net/?f=%5Cmu%20%3D%208.1)
A researcher used the technique with 23 students and observed that they had a mean of 8.2 hours with a standard deviation of 1.2.
This means that ![n = 23, X = 8.2, \sigma = 1.2](https://tex.z-dn.net/?f=n%20%3D%2023%2C%20X%20%3D%208.2%2C%20%5Csigma%20%3D%201.2)
Find the value of the test statistic.
![t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}](https://tex.z-dn.net/?f=t%20%3D%20%5Cfrac%7BX%20-%20%5Cmu%7D%7B%5Cfrac%7B%5Csigma%7D%7B%5Csqrt%7Bn%7D%7D%7D)
![t = \frac{8.2 - 8.1}{\frac{1.2}{\sqrt{23}}}](https://tex.z-dn.net/?f=t%20%3D%20%5Cfrac%7B8.2%20-%208.1%7D%7B%5Cfrac%7B1.2%7D%7B%5Csqrt%7B23%7D%7D%7D)
![t = 0.4](https://tex.z-dn.net/?f=t%20%3D%200.4)
The value of the test statistic is 0.4.
Answer:
A
Step-by-step explanation:
Substitute the given values into the expression
2a² + cb
= 2(5)² + 3(11)
= 2(25) + 33
= 50 + 33
= 83 → A