The answer is to this question is 8
Answer: d .we are 99% confident that the true mean age of horses with laminitis is between 6.3 and 7.4 years old.
Step-by-step explanation:
- A x% confidence interval interprets that a person can be x% sure that the true population parameter lies in it.
Given : Veterinary researchers at a major university veterinary hospital .
He calculated a 99% confidence interval for the average age of horses admitted for laminitis, a foot disease that leaves the horse severely lame, as 6.3 to 7.4 years.
Here , Population parameter = Mean age of horses with laminitis
Interpretation: We are 99% sure that the true mean age of horses with laminitis is between 6.3 and 7.4 years old.
Hence, the correct option is d .we are 99% confident that the true mean age of horses with laminitis is between 6.3 and 7.4 years old.
Answer:
![\mathrm{Factor}\:q^2-8q+12:\quad \left(q-2\right)\left(q-6\right)](https://tex.z-dn.net/?f=%5Cmathrm%7BFactor%7D%5C%3Aq%5E2-8q%2B12%3A%5Cquad%20%5Cleft%28q-2%5Cright%29%5Cleft%28q-6%5Cright%29)
Step-by-step explanation:
Considering the expression
![q^2-8q+12](https://tex.z-dn.net/?f=q%5E2-8q%2B12)
![\mathrm{Break\:the\:expression\:into\:groups}](https://tex.z-dn.net/?f=%5Cmathrm%7BBreak%5C%3Athe%5C%3Aexpression%5C%3Ainto%5C%3Agroups%7D)
![=\left(q^2-2q\right)+\left(-6q+12\right)](https://tex.z-dn.net/?f=%3D%5Cleft%28q%5E2-2q%5Cright%29%2B%5Cleft%28-6q%2B12%5Cright%29)
![\mathrm{Factor\:out\:}q\mathrm{\:from\:}q^2-2q\mathrm{:\quad }q\left(q-2\right)](https://tex.z-dn.net/?f=%5Cmathrm%7BFactor%5C%3Aout%5C%3A%7Dq%5Cmathrm%7B%5C%3Afrom%5C%3A%7Dq%5E2-2q%5Cmathrm%7B%3A%5Cquad%20%7Dq%5Cleft%28q-2%5Cright%29)
![=q\left(q-2\right)+\left(-6q+12\right)](https://tex.z-dn.net/?f=%3Dq%5Cleft%28q-2%5Cright%29%2B%5Cleft%28-6q%2B12%5Cright%29)
![\mathrm{Factor\:out\:}-6\mathrm{\:from\:}-6q+12\mathrm{:\quad }-6\left(q-2\right)](https://tex.z-dn.net/?f=%5Cmathrm%7BFactor%5C%3Aout%5C%3A%7D-6%5Cmathrm%7B%5C%3Afrom%5C%3A%7D-6q%2B12%5Cmathrm%7B%3A%5Cquad%20%7D-6%5Cleft%28q-2%5Cright%29)
![=q\left(q-2\right)-6\left(q-2\right)](https://tex.z-dn.net/?f=%3Dq%5Cleft%28q-2%5Cright%29-6%5Cleft%28q-2%5Cright%29)
![\mathrm{Factor\:out\:common\:term\:}q-2](https://tex.z-dn.net/?f=%5Cmathrm%7BFactor%5C%3Aout%5C%3Acommon%5C%3Aterm%5C%3A%7Dq-2)
![=\left(q-2\right)\left(q-6\right)](https://tex.z-dn.net/?f=%3D%5Cleft%28q-2%5Cright%29%5Cleft%28q-6%5Cright%29)
Therefore,
![\mathrm{Factor}\:q^2-8q+12:\quad \left(q-2\right)\left(q-6\right)](https://tex.z-dn.net/?f=%5Cmathrm%7BFactor%7D%5C%3Aq%5E2-8q%2B12%3A%5Cquad%20%5Cleft%28q-2%5Cright%29%5Cleft%28q-6%5Cright%29)
Answer:
69.743
Step-by-step explanation:
Answer:
it will be 1 : 3
Step-by-step explanation: