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 null hypothesis value, 
 is the standard deviation and n is the size of the sample.
In this problem:

So



The value of the test statistic is 
 
        
             
        
        
        
Answer:
Step 1: Find the quotient.
Step 2:  Subtract the result from 1.
Step 3:  Multiply the result by –2.
Step 4:  Add the result to 4 + x2.
Step-by-step explanation:
Edge
 
        
                    
             
        
        
        
Answer:
-18
Step-by-step explanation:
Step 1 - divide the numerator and denominator by 18 
-324÷18 / 18÷18
Step 2 - divide the numbers 
-18 / 18÷18  
-18/1
any expression divided by 1 remains the same 
-18
 
        
             
        
        
        
Answer:
3.6
Step-by-step explanation:
Hi there!
We are given this expression:
.6√36 (.6*√36) 
And we want to find the value of it
.6 can be re-written as 0.6
In that case,
0.6*√36
First, simplify what's under the radical: √36, which is equal to 6 (6*6=36) 
The expression then becomes:
0.6*6
Multiply those numbers together
0.6*6=<u>3.6</u>
Hope this helps!