W > Y + H/P
W - Y > H/P
P(W - Y) > H
H < P(W - Y)
Answer:
250f divide 12f = 21pounds rounded
Step-by-step explanation:
Hope this helps :)
Given
![H0: \ \mu=45 \\ \\ H1: \ \mu\ \textless \ 45](https://tex.z-dn.net/?f=H0%3A%20%5C%20%5Cmu%3D45%20%5C%5C%20%20%5C%5C%20H1%3A%20%5C%20%5Cmu%5C%20%5Ctextless%20%5C%2045)
This is a one-tailed test.
![z= \frac{41.8-45}{6/ \sqrt{25} } = \frac{-3.2}{6/5} = \frac{-3.2}{1.2} =-2.6667](https://tex.z-dn.net/?f=z%3D%20%5Cfrac%7B41.8-45%7D%7B6%2F%20%5Csqrt%7B25%7D%20%7D%20%3D%20%5Cfrac%7B-3.2%7D%7B6%2F5%7D%20%3D%20%5Cfrac%7B-3.2%7D%7B1.2%7D%20%3D-2.6667)
![P(z\ \textless \ -2.6667)=0.00383](https://tex.z-dn.net/?f=P%28z%5C%20%5Ctextless%20%5C%20-2.6667%29%3D0.00383)
Since the p-value of the sample statistic (0.00383) is less that the significant level (0.025), we reject the null hypothesis.