Answer:
E. Assuming that the mean amount of grass eaten by cows is equal to the mean amount of grass eaten by horses, the probability of observing a test statistic of at least 1.664 is 0.0487
Step-by-step explanation:
Given that :
Test statistic, t = 1.064
P-value = 0.0487
Hypothesis : To test if grazing cows eat more grass than grazing horses
The null hypothesis will be :
H0 : μ1=μ2	(that is there is no difference on the mean number of grass eaten by cows and horses). 
Alternative hypothesis ; H1 : μ1 > μ2 
The null is assumed true unless tested otherwise, the P-value is used as a probability metric for the rejection or acceptance of the null.
Therefore, if the null is True in this scenario, then, the probability of observing a test statistic of at least 1.664 is 0.0487
 
        
             
        
        
        
Answer: The required fraction is 
Step-by-step explanation:
Since we have given that 
Water               $31
Gas                   $19
Electric             $105
We need to find the fraction to represent the division in which water bill is to be paid with 2 equal payments.
So, Water bill in 2 equal payments would be 

Hence, the required fraction is 
 
        
             
        
        
        
Answer:
123
Step-by-step explanation:
The complete question is Assume that X/Y=M/N . Which of the following statements are true? (Assume that X, Y, M, N, and F are nonzero real numbers, and assume that all expressions have nonzero denominators.) Create an answer using the numbers associated with the true statements. For example, if only 1, 2, and 5 are true, then the answer is 125; if only 3 and 5 are true, then the answer is 35, etc
The statements are given in 1st attachment and answer choices are given in 2nd attachment
Let's start by verifying statements 3 and 4 as these are easy to verify 
To verify statement 3,
(X+Y)/Y= (M+N)/N
X/Y + 1= M/N + 1
since X/Y=M/N
X/Y + 1=  X/Y +1
So statement 3 is true
To verify statement 4,
(X+F)/Y= (M+F)/N
X/Y + F/Y = M/N + F/N
 Statement 4 is false
Look at the answer choices, statement 3 is mentioned in option c,d and e. Statement 4 is mentioned in c and d. Since statement 4 is incorrect our answer is option e
 
        
             
        
        
        
Answer:
C. 8,920,000,000
Step-by-step explanation:
To do this, you need to move the decimal point 9 places to the right. Moving it 9 places to the right gives you 8,920,000,000.
 
        
                    
             
        
        
        
A. 
B. 
C. 
D. 
E. 
Hope this helps BangtanBoyScouts