Answer:
15.87% is the chance that Scott takes more than 4.25 minutes to solve a problem at an academic bowl.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 4 minutes
Standard Deviation, σ = 0.25 minutes
We standardize the given data.
Formula:
 
P(more than 4.25 minutes to solve a problem)
 
 
Calculation the value from standard normal z table, we have,  
 
Thus,15.87% is the chance that Scott takes more than 4.25 minutes to solve a problem at an academic bowl.
 
        
             
        
        
        
Find how much he will earn
we know he will earn 8 hours sofirst find how many he earns 
9 per hour
8 hou
9*8=72
72+6*numberofdeliveries=155
minus 72
6*numberofdeliviers=83
divide by 6
number of delevieries=13.8
he can't make 13.8, round up to get 14
answer is 14 deliveries
        
                    
             
        
        
        
Answer: 145
Step-by-step explanation: I say this because it has 14. 4 then 
 
        
             
        
        
        
Answer:
<h2>y=3000 (0.92)^3=2336.064=
$2336.06</h2>
Step-by-step explanation:
<h2>Mark me brainliest please</h2>
 
        
             
        
        
        
Answer:
Step-by-step explanation:
We need to evaluate if thickness of a 10 gauge metal sheet is a requiered in the process that means   3.416 mm thick. So that should be our null hypothesis;  μ₀ = 3.416    and based on sample data, we will formulate an alternative hypothesis taking into account the mean, and standard deviation obtained. We surely will have better  information to take a decision