Answer:
C. 7/8 days
Step-by-step explanation:
 
        
             
        
        
        
The greatest common factor of 8 and 52 is 2.
<span><span>8:   222  </span><span>50:   2  55</span><span>GCF:   2  <span> 
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Answer:
The margin of error  for a 90% confidence interval is 16.4
Step-by-step explanation:
We are given the following in the question:
Sample size, n = 25
Standard deviation = 50

Margin of error = 

Putting the values, we get,

Thus, the margin of error  for a 90% confidence interval is 16.4