Answer: 95% confidence interval would be (0.013,0.167).
Step-by-step explanation:
Since we have given that
survey of teachers found that 224 of 395 elementary school teachers,
So, n₁ = 395
x₁ = 224
So,
n₂ = 266
x₂ = 126
So,
At 95% confidence level, z = 1.96
So, interval would be
Hence, 95% confidence interval would be (0.013,0.167).
Answer:
17
Step-by-step explanation:
12.5 - (-4.5) = 12.5 + 4.5 = 17
Magnesium makes up 1/400 of the human body
(6n^2-4)+(-2n^2+9)
6n^2-4-2n^2+9
4n^2+5
Hope this helps!
Answer:
Step-by-step explanation:
So this is a composition of functions. Think back to solutions of equations. You would have to put the equation into the other equations. It's like this!
So I graphed it like this on desmos: