19/20 in simplest form is 0.95
9/16 in simplest form is 0.5625
        
             
        
        
        
<h3>
Answer: Choice B</h3>
No, this is not a plausible value for the population mean, because 5 is not within the 95% confidence interval.
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Explanation:
The greek letter mu is the population mean. It has the symbol  which looks like the letter 'u' but with a tail at the front or left side.
 which looks like the letter 'u' but with a tail at the front or left side.
The question is asking if mu = 5 is plausible if the researcher found the 95% confidence interval to be 5.2 < mu < 7.8
We see that 5 is <u>not</u> in that interval. It's a bit to the left of 5.2
Since mu = 5 is not in the interval, it's not a plausible value for the population mean. 
Have we ruled it out with 100% confidence? No. Such a thing is not possible. There's always room for (slight) error. The researcher would need to do a census to be fully confident; however, such practices are very time consuming and expensive. This is the main reason why statistics is important to try to estimate the population with a sample.
 
        
        
        
Answer:
they can??!!!
Step-by-step explanation:
omigod wowoow
 
        
                    
             
        
        
        
Answer: c
Step-by-step explanation:
 
        
             
        
        
        
<dpb because they’re vertical angles (they’re directly across from each other)