Your question is not complete, however, I have provided answers to it by suggesting that the question goes like this;
Twelve different video games showing drug use were observed. The duration times of drug use (in seconds) were recorded. When using this sample for a t test of the claim that the population mean is greater than 85sec, what does df denote, and what is its value
Answer:
df denote degree of freedom.
degree of freedom df is 11.
Step-by-step explanation:
what does df denote?
df denote degree of freedom
To find it value,
we have twelve different video games showing drug use, then, it means that the sample size "n" is 12
the degree of freedom is 1 < n ( i.e, one less than sample size)
df = n -1 = 12 -1 = 11
So, degree of freedom df is 11.
Note; use your sample size to solve the question as I don't know the exact value you were given. Thanks.
Answer:
z=20.8
x=16.97
y=12
Step-by-step explanation:
The triangle on the right is a 30,60,90 triangle, a special right triangle with simple rules to find the side lengths. sides A,B, and C where C is the hypotenuse (24 in your diagram). The short side A is= 1/2 of side C (12 in your diagram). The long side B is= side A*√3 (20.8 in your diagram).
The triangle on the left is another special right triangle called a 45,45,90. The rules for this triangle are C= A*√2, and B=A. Because of the rules in the 30,60,90 triangle, we know that side A is 12. This means that side B (y)=12. Side C (x)= 16.97.
Hope this helped! Sorry if my explanation is confusing, but the rules for special right triangles can be easily found online and then calculated :)
You would like you said have it in algerbraically but you need to put the anwers together
