Answer:
(a) 
(b) 
(c) Fail to reject 
Step-by-step explanation:
Given
Solving (a): The test statistic
This is calculated as:
So, we have:
--- approximated
Solving (b): Range of p value
First, calculate the degree of freedom (df)
Using:
--- significance level
The p value at: is:
and the range is:
Solving (c): The conclusion
Compare the p value to the level of significance value
We have:
By comparison:
because:
<em>Hence, the conclusion is: fail to reject </em><em></em>
Answer: one number is 104, the first number is 26 and the third number is 126
How to:
Let’s say the “first number” is Y, the “second number” is X, and the “third number” is Z. This makes Y=4x and Z=x+100. Then put it into an equation to find the sum: X+4x+x+100=256. Take away 100 from both sides of the equation and combine the like terms (the X’s). That leaves 6x=156. Then divide both sides by 6 to get x alone which is x=26. That is the first number. To find Y just multiply X by 4 and that’s Y=104. And lastly add 100 to x which is Z=126.
Answer:
3.5
Step-by-step explanation:
in order to find the maximum, we are basically solving to find the vertex of the graph. to find the vertex use :
-b/2a
the 'b' is 112
the 'a' is -16
so :
-112/-32 = 3.5
The 2nd one I think brainlest me I was first
