Answer:
c.  There is no difference in the length between male and female babies
Step-by-step explanation:
When a confidence interval contains a zero, then there is no statistically significant different between the two group means because this means that there is a zero in the difference between the groups and a zero in the difference means there is no difference.
 
        
             
        
        
        
Answer:
I will list main feature for each property and you can choose. You can comment if you want to check or have questions 
Step-by-step explanation:
Isosceles - two sides are equal
Equilateral - all sides are equal
Obtuse - one angle is greater than 90 degrees 
Right - one angle is equal to 90 degrees 
Scalene - none of the sides is equal
Acute - all angles are less than 90 degrees 
Go down the list and see if it's true or false about the given triangle
 
        
             
        
        
        
Answer: 4 
Step-by-step explanation:
 
        
                    
             
        
        
        
2*1*1= 2 m^3 per chest
2 m^3 per chest* 18 chests= 36 m^3 total
Final answer: 36 m^3