Answer:
Option B
Step-by-step explanation:
Since the company that Carrie out the survey after the students also arrived at the same conclusion as the student which is: no evidence that preference for brand A is not 0.5. We can say that she did not make any error which could be a type 1 or 2 error and found that the actual value was 0.5 which is the null hypothesis
Null hypothesis: u = 0.5 for brand A
and thus fails to reject the null hypothesis.
Choice 1. f(5)=5-3 which equals 2
Answer:
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Step-by-step explanation:
In order to solve it we have to make two equations for Tony and Ray. But first we have to appeal to the formula : Distance = Speed*Time. Since we have two speeds we can match minimum speed and aximum speed with x and y respectively. So, now we can make an equation for both guys:
2x+3.5y=355 for Tony
2x+3y=320 For Ray
Then substracting : the Rae's equation from Tony's one in order to solve both equations.
You get 5y=35 solve for Y which is 70.
The next step is plug the value you have obtained into any equation to find a solution for x.
Let's take this one :
2x+3(70)=320
x=55
Do hope you will find it helpful!
Answer:
1/2
Step-by-step explanation:
y = kx
where k is the constant of proportionality
y = 1/2 x so k= 1/2