Answer:
The value of the test statistic is
Step-by-step explanation:
The null hypothesis is:
The alternate hypotesis is:
Our test statistic is:
In which X is the sample mean, is the value tested at the null hypothesis, is the standard deviation and n is the size of the sample.
In this problem, we have that:
Then
The value of the test statistic is
8(x - 6) = 4x
Distribute.
8x - 48 = 4x
Subtract 8x from both sides.
8x -8x - 48 =4x -8x
Now you have...
-48 = -4x
Divide -4 by both sides.
-48/-4 = -4x/-4
12 = x
The number is 12.
Answer:
hope this helps 229 999 0523
117
/320 ≈ 0.366
Step-by-step explanation:
Step 1 of 1: Simplify.
Simplify
117 over 320
117
320
Step 1 of 1: Simplify, sub-step a: Reduce fraction to lowest terms.
Reduce fraction to lowest terms
1 is the greatest common divisor of 117 and 320. The result can't be further reduced.
Answer:
Step-by-step explanation:
Diameter = 12
Radius = 12/2 = 6