Answer:
The critical value is T = 3.143.
Step-by-step explanation:
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 7 - 1 = 6
98% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 6 degrees of freedom(y-axis) and a confidence level of
. So we have T = 3.143.
The critical value is T = 3.143.
Answer:
hope this helps :)
Step-by-step explanation:
Isolating a variable means rearranging an algebraic equation so that a different variable is on its own.
Answer:
100
Step-by-step explanation:
In a 45-45-90 triangle, the hypotenuse is always larger than either of the legs by a factor of
. x is therefore:
![100\sqrt{2}\div \sqrt{2}=100](https://tex.z-dn.net/?f=100%5Csqrt%7B2%7D%5Cdiv%20%5Csqrt%7B2%7D%3D100)
Hope this helps!
Answer:
144
Step-by-step explanation:
We have 240 7th graders
60% check out fantasy books
240 *60%
240 *.60
144 will check out fantasy books
Answer:
48%
Step-by-step explanation:
To convert any fraction to a percentage, we need to multiply it by 100.
![\frac{12}{25}*100](https://tex.z-dn.net/?f=%5Cfrac%7B12%7D%7B25%7D%2A100)
![= \frac{}{} 12*4](https://tex.z-dn.net/?f=%3D%20%5Cfrac%7B%7D%7B%7D%2012%2A4)
= 48%