This is my expression: 45h + 125. I hope this helps.
Answer:
The value of the test statistic is ![t = 1.97](https://tex.z-dn.net/?f=t%20%3D%201.97)
Step-by-step explanation:
The null hypothesis is:
![H_{0} = 250](https://tex.z-dn.net/?f=H_%7B0%7D%20%3D%20250)
The alternate hypotesis is:
![H_{1} \neq 250](https://tex.z-dn.net/?f=H_%7B1%7D%20%5Cneq%20250)
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 the null hypothesis value,
is the standard deviation and n is the size of the sample.
In this problem:
![X = 251.6, \mu = 250, \sigma = 5.4, n = 44](https://tex.z-dn.net/?f=X%20%3D%20251.6%2C%20%5Cmu%20%3D%20250%2C%20%5Csigma%20%3D%205.4%2C%20n%20%3D%2044)
So
![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{251.6 - 250}{\frac{5.4}{\sqrt{44}}}](https://tex.z-dn.net/?f=t%20%3D%20%5Cfrac%7B251.6%20-%20250%7D%7B%5Cfrac%7B5.4%7D%7B%5Csqrt%7B44%7D%7D%7D)
![t = 1.97](https://tex.z-dn.net/?f=t%20%3D%201.97)
The value of the test statistic is ![t = 1.97](https://tex.z-dn.net/?f=t%20%3D%201.97)
Answer:
330
Step-by-step explanation:
-$737737373hhhehehwywuuuwu
The answer is 3 1/2 or in decimal form it is 3.5