Answer:
Correct option: (a)
Step-by-step explanation:
A confidence interval is an interval estimate of the parameter value.
A (1 - <em>α</em>)% confidence interval implies that the confidence interval has a (1 - <em>α</em>)% probability of consisting the true parameter value. 
OR
If 100 such confidence intervals are made then (1 - <em>α</em>) of these intervals would consist the true parameter value.
The 92% confidence interval for the mean annual phone charge of all Vopstra customers is:

This confidence interval implies that true mean annual phone charge of all Vopstra customers is contained in the interval ($405, $535) with 0.92 probability.
Thus, the correct option is (a).
 
        
             
        
        
        
-3
step by step
add 2 to -11 and divide-9 by 3
        
                    
             
        
        
        
<u>1.03*10^{6}>9.8*10^{5</u>
Answer:
4.01*10³<5*10^(-5)false
3.9*10^5<8.06*10^{-7}false
1.03*10^{6}>9.8*10^{5}true
7.8*10^{2}>2.1*10^{3}false
 
        
                    
             
        
        
        
Answer:
$20
Step-by-step explanation:
the delivery guy show up early and that guy deserve 20bucks
 
        
             
        
        
        
Answer:
24
Step-by-step explanation:
i answered it and it was correct
your welcome! :)