Answer: 99% confidence interval would be 
Step-by-step explanation:
Since we have given that
Sample size = 30
Sample mean = $1450
Standard deviation = $220
We need to find the 99% confidence interval.
So, z = 2.58
So, confidence interval would be

Hence, 99% confidence interval would be 
Answer:23
Step-by-step explanation:
Answer:
25
Step-by-step explanation:
The only other number on the line with 625 is 25.
_____
(square root) = √(square)
Your picture shows a (square) of 625 and asks you for the (square root). The table shows the (square root) corresponding to the (square) of 625 is 25.
Answer:
step 1. mHT = 2(74) = 148°. the arc measures twice the angle when crossing the circle.
Answers D. and E. are correct.
I think that B might also be correct, I hope This helps.