Answer:
The correct value is t* = 2.797.
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 = 25 - 1 = 24
99% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 24 degrees of freedom(y-axis) and a two-tailed confidence level of . So we have T = 2.797.
Check the picture below.
if we know the endpoints of the circle, then its center must be the midpoint of those two endpoints.
Answer:
92.6 inches
Step-by-step explanation:
All you have to do is look at the 3D pyramid in a 2D plane. You have base and slant height and you're trying to find height. This is just a right triangle. The slant height is the hypotenuse of the triangle. And half of the base is one of the legs. You are trying to find height, AKA the other leg. Since a^2+b^2=c^2 and you have a and c. Just square HALF of the base height. Then square the slant height. Then subtract a^2 from c^2 and you'll get b^2. Then you take the square root of b^2 to get b.
23.6/2=11.8
11.8^2+b^2=93.3^2
139.2+b^2=8704.9
b^2=8565.7
=b
=92.6
b=92.6