Answer:
the square root of 180/16 is approximately 3.3541
Step-by-step explanation:
Since AB is the bisector, it divides the segment IK into two equal parts.
This means that IB and BK are equal because B is the halfway point.
C is the answer.
Complete Question
A civil engineer is analyzing the compressive strength of concrete. Compressive strength is normally distributed with
. A random sample of 12 sample specimens has a mean compressive strength of 
. Round your answers to 1 decimal place. (a) Calculate the 95% two-sided confidence interval on the true mean compressive strength of concrete.
Answer:
Step-by-step explanation:
From the question we are told that:
Sample size 
Standard deviation 
Sample mean 
Confidence level =95%
significance level
From table \alpha 0.05
Gives
Generally the equation for confidence interval is mathematically given by
Answer:
12cm squared
Step-by-step explanation:
The area of a triangle is 1/2bh
A = 1/2 x 4 x 6
A = 4 x 3
A = 12 cm squared
