Answer:
Part 1 
Type II error
Part 2
No ; is not ; true
Step-by-step explanation:
Data provided in the question 
Mean = 100 
The Random sample is taken = 43 students 
Based on the given information, the conclusion is as follows
Part 1
Since it is mentioned that the classes are successful which is same treated as a null rejection and at the same time it also accepts the alternate hypothesis 
Based on this, it is a failure to deny or reject the false null that represents type II error
Part 2
And if the classes are not successful so we can make successful by making type I error and at the same time type II error is not possible 
Therefore no type II error is not possible and when the null hypothesis is true the classes are not successful 
 
        
             
        
        
        
Answer:
Step-by-step explanation:
 
        
             
        
        
        
Answer:28 green and 35 red
Step-by-step explanation:
Given
If there are r red counter and g green counter then 
Probability of drawing a green counter is 
and 
Thus 



Also if 4 red and 2 green counter is added the probability of drawing a green counter is 





Substitute the value of g in equation (ii)[/tex]



Therefore 
Thus there 28 green counter and 35 red counter
 
        
             
        
        
        
Answer:
 Is there any answer choes or something?