The smallest number out of this set is 57%
<h2><u>
Answer with explanation</u>
:</h2>
Let
be the mean response time of a species of pigs to a stimulus.
As per given , we have
![H_0 : \mu=0.8\\\\ H_a: \mu\neq0.8](https://tex.z-dn.net/?f=H_0%20%3A%20%5Cmu%3D0.8%5C%5C%5C%5C%20H_a%3A%20%5Cmu%5Cneq0.8)
Since , the alternative hypothesis is two-tailed and population standard deviation is unknown , so we perform two-tailed t-test.
Also, we have n= 28
Sample mean =![\overline{x}=1.0](https://tex.z-dn.net/?f=%5Coverline%7Bx%7D%3D1.0)
sample standard deviation= s= 0.3
Test statistic : ![t=\dfrac{\overline{x}-\mu}{\dfrac{s}{\sqrt{n}}}](https://tex.z-dn.net/?f=t%3D%5Cdfrac%7B%5Coverline%7Bx%7D-%5Cmu%7D%7B%5Cdfrac%7Bs%7D%7B%5Csqrt%7Bn%7D%7D%7D)
![t=\dfrac{1.0-0.8}{\dfrac{0.3}{\sqrt{28}}}=3.53](https://tex.z-dn.net/?f=t%3D%5Cdfrac%7B1.0-0.8%7D%7B%5Cdfrac%7B0.3%7D%7B%5Csqrt%7B28%7D%7D%7D%3D3.53)
P-value :
[using p-value table for t]
Decision : Since p-value < 0.05 ( significance level ), so we reject the null hypothesis .
Conclusion : We have enough evidence to accept that alcohol affects the mean response time.
Answer:
B. ![\frac{s}{6}=2.5](https://tex.z-dn.net/?f=%5Cfrac%7Bs%7D%7B6%7D%3D2.5)
Step-by-step explanation:
The problem states that "Jordan <u>cuts</u> a long piece of string into 6 <u>equal</u> <u>pieces</u>. Each piece is 2.5 feet long. Which equation can you use to find the length s of the long piece of string <u>before</u> Jordan cuts it?"
Cut.ting the string indicates that we must use division. And since there is only <u>one</u> answer choice that uses division, we now know our answer.
The answer is B. ![\frac{s}{6} =2.5](https://tex.z-dn.net/?f=%5Cfrac%7Bs%7D%7B6%7D%20%3D2.5)
Hope this helps! Brainliest would be much appreciated! Have a great day! :)
20% of 307.32 = 61.464 (Rounded to the nearest tenth, 61.46)
307.32 - 61.46 = $245.86