Answer:
Hello your question has some missing data below is the missing data
answer : The Investigator can conclude that the metropolitan phoenix water is different from the rural Arizona ( to = -2.77 which is < 0.05 )
Step-by-step explanation:
The hypothesis ;
H0 : μ1 = μ2
Ha : μ1 ≠ μ2
significance level ( ∝ ) = 0.05
calculate for degree of freedom ( df ) = 13.2 ( using excel function )
find the test statistic ( to ) = -2.77
attached below is the remaining part of the solution
A. The student improperly set up the equation to find the y-intercept
This is because he put y as -2 and x as 1, but the coordinate is (1,-2) not (-2,1)
Hope this helps!
Answer: A
Step-by-step explanation: because I had that same test last year
The population in 2016 is likely to be 206.20 million.
Given:
Let the population in 1994 be P₀ and g be the exponential growth.
Let the population Pn in nth will be denoted by Pn = P₀ * (1+g)n.
The population in 1994 was 195 million and after 8 years it became 199 million in 2002.
So,
199 = 195 * (1+g)₈ = 199195
Using log,
=8 * log(1+g) = log199 - log195 = 0.0088185
=log(1+g) = 0.0011022
=1 + g = 1.002541
g = 0.00254
Therefore the growth rate is 0.2541%
The population in 2016 is computed by:
= 195 * (1+g)₂₂ or 195 * 1.002541₂₂
= 195 * 1.0574279
= 206.20 million
Answer:
y=7/2x−10
Step-by-step explanation:
Let's solve for y.
7x−2y=20
Step 1: Add -7x to both sides.
7x−2y+−7x=20+−7x
−2y=−7x+20
Step 2: Divide both sides by -2.
−2y/2=−7x+20/2
y=7/2x−10