Answer:
13.5
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
a) 0.001 meters
b) 1 millimeter because 1 mm = 0.001 meters as well
Step-by-step explanation:
 
        
             
        
        
        
Answer:
p-value: 1.000
There is enough evidence at the 1% level of significance to suggest that the proportions are not equal.
Step-by-step explanation:
We will be conducting a difference of 2 proportions hypothesis test
The hypothesis for this test is:
H_0:  p1 - p2=0
H_a:  p1 - p2  ≠0
(p1 ) = 252/300 = 0.84
(p2) = 195/300 = 0.65
This is a 2 tailed test with a significance level of 1%.  So our critical values are:  z > 2.575  and z < -2.575
See the attached photo for the calculations for this test
 
        
             
        
        
        
Answer:
A is the answer you are looking for 
 
        
             
        
        
        
1+8=3r
9=3r
Both divided by 3
3=r