Answer:pls is it all we are to ans
Step-by-step explanation:
252mmSquared
Step-by-step explanation:
28+28=56
74-56=18
18÷2=9
9×28=252
Answer:
We accept H₀
Step-by-step explanation:
Normal Distribution
size sample n = 69
sample mean 18.94
standard deviation 8.3
Is a one tailed-test to the left we are traying of find out is we have enough evidence to say that the mean is less than 20 min.
1.-Test hypothesis H₀ ⇒ μ₀ = 20
Alternative hypothesis Hₐ ⇒ μ₀ < 20
2.- Critical value
for α = 0.1 we find from z Table
z(c) = - 1.28
3.-We compute z(s)
z(s) = [ ( μ - μ₀ ) / (σ/√n) ⇒ z(s) = [( 18.94 - 20 )*√69)/8.3]
z(s) = ( -1.06)*8.31/8.3
z(s) = - 1.061
4.- We compare
z(c) and z(s) -1.28 > -1.061
Then z(c) > z(s)
z(s) in inside acceptance region so we accept H₀
<h2>2x+y=2</h2>
Step-by-step explanation:
Let 
be the point 
Let 
be the point 
The equation of the line passing through two points 
and 
is 
substituting 
in the above equation yields
which when simplified gives 
which when further simplified gives 
