Answer:
Step-by-step explanation:
Triangle is a three dimensional pentagon such that it has three sides and three angles. Two lines that meet at a vertex are known as sides. Angle is the figure made by two sides meeting at a vertex.
As per triangle inequality, sum of two sides is greater than the third side.
Consider the figure:
If then
This is because we know that If two sides of a triangle are not equal, the angle opposite the longest side is the larger angle
Answer: (15.47, 24.53)
Step-by-step explanation:
We know that the confidence interval for population mean is given by :_
, where n= sample size.
= standard deviation.
= sample mean.
z*= Critical value.
Given : n= 450
Critical value for 95% confidence = z*=1.96 [From z-value table]
Then, the 95% confidence interval will be :-
Hence, the 95% confidence interval for the mean change in score μ μ in the population of all high school seniors. : (15.47, 24.53)