A random sample of 21 lunch orders at Noodles & Company showed a mean bill of $13.54 with a standard deviation of $6.45. Find the 98 percent confidence interval for the mean bill of all lunch orders. (Round your answers to 4 decimal places.)    The 98% confidence interval is from  ___to___

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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A random sample of 21 lunch orders at Noodles & Company showed a mean bill of $13.54 with a standard deviation of $6.45. Find the 98 percent confidence interval for the mean bill of all lunch orders. (Round your answers to 4 decimal places.)
  
The 98% confidence interval is from  ___to___ 

 
 
 
 
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