The student clearly made a mistake, because he found that he needs to mix more solution that he wants to end up with. Mixing 1.17 L of one solution with more of some other solution will make more than 1 L of another solution.
The mistake is writing <em>x</em> - 1 instead of 1 - <em>x</em>.
Answer:
2y+15
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given that:
There are 96 automobile accident fatalities in Connecticut and 44 were alcohol related.
The null hypothesis and the alternative hypothesis for this study can be computed as:
![H_o: P =0.39 \\ \\ H_1:P> 0.39](https://tex.z-dn.net/?f=H_o%3A%20P%20%3D0.39%20%5C%5C%20%5C%5C%20H_1%3AP%3E%200.39)
The sample proportion
= 44/96 = 0.45833
Using the Z formula for a single proportion test, we get;
![Z = \dfrac{\hat p - P }{\sqrt\dfrac{{P(1-P)}}{{n}}}](https://tex.z-dn.net/?f=Z%20%3D%20%5Cdfrac%7B%5Chat%20p%20-%20P%20%7D%7B%5Csqrt%5Cdfrac%7B%7BP%281-P%29%7D%7D%7B%7Bn%7D%7D%7D)
![Z = \dfrac{0.45833 - 0.39 }{\sqrt\dfrac{{0.39(1-0.39)}}{{96}}}](https://tex.z-dn.net/?f=Z%20%3D%20%5Cdfrac%7B0.45833%20-%200.39%20%7D%7B%5Csqrt%5Cdfrac%7B%7B0.39%281-0.39%29%7D%7D%7B%7B96%7D%7D%7D)
![Z = \dfrac{0.06833 }{\sqrt\dfrac{{0.39(0.61)}}{{96}}}](https://tex.z-dn.net/?f=Z%20%3D%20%5Cdfrac%7B0.06833%20%7D%7B%5Csqrt%5Cdfrac%7B%7B0.39%280.61%29%7D%7D%7B%7B96%7D%7D%7D)
![Z =1.37](https://tex.z-dn.net/?f=Z%20%3D1.37)
The p-value = 1 -P(Z< 1.37)
The p-value = 1 - 0.9147
The p-value = 0.0853
At the level of significance (∝) 0.05 ;
Since p-value is greater than level of significance (∝); we accept the null hypothesis and conclude that there is no sufficient evidence to say that higher percentage of alcohol is related to automobile fatalities.
Answer:no
Step-by-step explanation: if they are all under the bus canopy they obviously take the bus make the data bias
Answer:The right answer is (B)
Step-by-step explanation:
Your welcome