Answer:
The decision rule is  
Fail to reject the null hypothesis 
  The conclusion is  
 There is no sufficient evidence to show that  the  designer's claim of a better shoe is supported by the trial results.
Step-by-step explanation:
From the question we are told that 
   The population mean is  
    The sample size is  n =  25 
    The sample mean is  
    The standard deviation is  
Let assume the level of significance of this test is  
     The null hypothesis is  
      The alternative hypothesis is  
Generally the degree of freedom is mathematically represented as   
          
=>       
=>       
Generally the test statistics is mathematically represented as 
         
=>   
=>   
Generally from the student t distribution table the probability of obtaining    to the right of the curve at a degree of freedom of
 to the right of the curve at a degree of freedom of  is
  is  
     
From the value obtained we see that   hence
 hence 
The decision rule is  
Fail to reject the null hypothesis 
  The conclusion is  
 There is no sufficient evidence to show that  the  designer's claim of a better shoe is  supported by the trial results.
 
        
             
        
        
        
Answer:
170
Step-by-step explanation:
Equations derived from given info.
Use some substitution now.
- P=2(E+40) 
- J=E+40
- P+J+E=300
Substitute first and second equation into third.
- 2(E+40)+E+40+E=300
- 2E+80+E+40+E=300
- 4E+120=300
- 4E=180
- E=45
Emily has 45 stickers. But we want to know what Peter has.
Use P=2(E+40)
Peter has 170 stickers.
 
        
             
        
        
        
Answer:
<h2>

</h2>
Step-by-step explanation:
g(x) = x² - 2x - 6
h(x) = 2x² - 5x + 2
To find (h-g) (-2) we must first find h - g(x) 
To find h - g(x) subtract g(x) from h(x)
We have
<h3>

</h3><h3>

</h3>
To find (h-g) (-2) substitute the value of x that's - 2 into (h - g)(x) that's replace every x in (h - g)(x) by - 2
That's
<h3>

</h3>
We have the final answer as
<h3>

</h3>
Hope this helps you 
 
        
             
        
        
        
Answer:
E
Step-by-step explanation:
well, yes we know what coins there are and that they’re in jars right? but to find which jar is worth the most, we need to know how many coins are in each. she could have 300 pennies, 2 quarters, 4 dimes, and 7 nickels. we need more information to answer this question so E is the only correct option!
 
        
             
        
        
        
800= about 1.76 lbs
700= about 1.54 lbs
(there are about 453.5 grams in a pound