Answer:
Population Mean = 2.0
Population Standard deviation = 0.03
Step-by-step explanation:
We are given that the inspector selects simple random samples of 30 finished products and computes the sample mean product weight.
Also, test results over a long period of time show that 5% of the values are over 2.1 pounds and 5% are under 1.9 pounds.
Now, mean of the population is given the average of two extreme boundaries because mean lies exactly in the middle of the distribution.
So,   Mean,  =
 =  = 2.0
 = 2.0
Therefore, mean for the population of products produced with this process is 2.
Since, we are given that 5% of the values are under 1.9 pounds so we will calculate the z score value corresponding to a probability of 5% i.e. 
              z = -1.6449 {from z % table}
We know that z formula is given by ;  
                  ~ N(0,1)
 ~ N(0,1) 
               -1.6449 =  ⇒
     ⇒   
  
                                            ⇒  0.0608 *
 0.0608 *  {as sample size is given 30}
  {as sample size is given 30} 
                                            ⇒  = 0.03 .
 = 0.03 .
Therefore, Standard deviation for the population of products produced with this process is 0.0333.
 
        
             
        
        
        
Answer:
She is 30
Explanation:
Because if you read it right it says "Emmett is 4 years older than Liam." Also you had a grammar error in it.
 
        
             
        
        
        
Answer:
The cafeteria should budget $2.90 on average for one gallon of milk.
Step-by-step explanation:
 
        
             
        
        
        
Answer:
$9
Step-by-step explanation:
Cost per bottle of Lemonade = $0.30
Let b represent the number of bottles that you sell which is given as:
30 bottles
Equation for solving
= 0.30 × b
= 0.30b
Hence,
Total cost for 30 bottles of Lemonade is:
0.30 × 30
= $9
Hence, you can make $9 from selling 39 bottles of Lemonade.
 
        
             
        
        
        
Answer:
ill try
Step-by-step explanation:
n is the number so n= 2-11 and so on