Answer:
Interest rate is 5.25% a year.
Step-by-step explanation:
r = (1/54)((22252.5/18000) - 1) = 0.004375
r = 0.004375
Convert decimal to percentage
R = 0.004375 * 100 = 0.4375%/month
Calculate annual rate
0.4375%/month × 12 months/year = 5.25% per year.
 
        
                    
             
        
        
        
Answer:
7X8
Step-by-step explanation:
There is 7 spaces along one side and 8 along the other, area=l x w (length multiplied by width)
 
        
                    
             
        
        
        
Answer:
We conclude that the machine is under filling the bags.
Step-by-step explanation:
We are given the following in the question:
Population mean, μ = 436.0 gram
Sample mean,  = 429.0 grams
 = 429.0 grams
Sample size, n = 40
Alpha, α = 0.05
Population standard deviation, σ = 23.0 grams
First, we design the null and the alternate hypothesis
 
We use one-tailed(left) z test to perform this hypothesis.
Formula:
 
Putting all the values, we have
 
Now,  
Since,  
 
We reject the null hypothesis and accept the alternate hypothesis. Thus, we conclude that the machine is under filling the bags.