Answer:
The test statistic value is 1.474.
Step-by-step explanation:
In this case we need to determine whether the plant is making a higher than expected number of irregular t-shirts.
If more than 8% of the t-shirts manufactured at a plant are classified as irregular, the manager has to do an investigation to try to find the source of the increased mistakes in the manufacturing process..
The hypothesis for this test can be defined as follows:
<em>H₀</em>: The proportion of irregular t-shirts is 8%, i.e. <em>p</em> = 0.08.
<em>Hₐ</em>: The proportion of irregular t-shirts is more than 8%, i.e. <em>p</em> > 0.08.
The information provided is:
<em>n</em> = 100
<em>X</em> = number of irregular t-shirts = 12
Compute the sample proportion as follows:

Compute the test statistic as follows:

   
Thus, the test statistic value is 1.474.
 
        
             
        
        
        
I believe that the answer is A
        
             
        
        
        
Answ
its a just did this
Step-by-step explanation:
 
        
             
        
        
        
200 meters represents 2 cm
 
        
             
        
        
        
Answer:
Using the info you just gave,
Basketball, 8 studentsfootball, 7 studentsSoccer 12 studentsother, 13 students
We can now figure out the percentage of students that did NOT select soccer.
First, you need to add all the students together.
8 + 7 + 12 + 13
You get 40 students all together.
Now, add together the students that DID NOT choose soccer.
7 + 8 + 13 = 29
That means that 28/40 of the students did not choose soccer.
Now, convert that to a percentage.
28/40 = 0.7
To make that into a percentage, multiply by 100
Thus, the percentage of students that did not select soccer is 70%.
Hope this helped!