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$2.00 Find the 95% confidence interval for the

  • From Mathematics: Statistics
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  • Due on Jun. 13, 2012
  • Asked on Jun 11, 2012 at 12:24:01PM
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wolf27
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Q:
Find the 95% confidence interval for the standard deviation of the lengths of pipes if a sample of 26 pipes has a standard deviation of 10 inches.
 

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  • Posted on Jun 11, 2012 at 12:28:33PM
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help_algebra
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A:
Preview: ... referring to chi square tables for 25 degrees of freedom, X^2 [0.975] = 40.6, so X[0.975] = 6.37 X^2 ...
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  • Posted on Jun 11, 2012 at 12:32:47PM
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A:
Preview: ... o me degrees of freedom = 26 -1 = 25 referring to chi square tables for 25 degrees of freedom, X^2 [ ...
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