Answer:
ita A hope it helps
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
x=5x66=300
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
a
   The null hypothesis is  
    The alternative hypothesis is  
b
  The sample proportion is 
Step-by-step explanation:
From the question we are told that 
      The sample size is  n =  546  
       The number of people that use a laptop overnight is  
     The population proportion is  
    Generally 
   The null hypothesis is  
    The alternative hypothesis is  
Gnerally the sample proportion is mathematically represented as 
         
=>     
=>     