Answer:
4. H0: u1= u2    Ha; u1≠ u2
5. The smaller value of p supports the null hypothesis.
Step-by-step explanation:
4. The null and alternate hypotheses are
H0: u1= u2   i.e there no difference between the mean pinch strengthof the two surgeries
 against the claim 
Ha; u1≠ u2   i.e there a difference between the mean pinch strengthof the two surgeries
It can be written like this as well 
H0: u1 -u2= 0   i.e there no difference between the mean pinch strengthof the two surgeries
 against the claim 
Ha; u1 -u2≠ 0   i.e there a difference between the mean pinch strengthof the two surgeries
Part 5. The test having a p- value less than 0.05  tells that the null hypothesis cannot be rejected. Theres no evidence to reject the null hypothesis.
The smaller value of p supports the null hypothesis.
 
        
             
        
        
        
Answer:
-11
Step-by-step explanation:
 
        
                    
             
        
        
        
Matthew made $15
Matthew 60% + Luke 40%= Profit 100%
if profit is $25; 60% will be: 0.60* $25=$15 ; Matthew's share 
                       40% will be:  0.40* $25 =10 ; Luke share         
        
                    
             
        
        
        
Sorry I can’t buddy........................................................:(