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In: Statistics and Probability

The diameters​ (in inches) of 17 randomly selected bolts produced by a machine are listed. Use...

The diameters​ (in inches) of 17 randomly selected bolts produced by a machine are listed. Use a 90% level of confidence to construct a confidence interval for ​(a) the population variance sigma squaredσ2 and ​(b) the population standard deviation sigmaσ.

Interpret the results.

4.481, 3.813, 3.969, 4.423, 3.769, 3.757, 4.005,
4.247, 3.876, 4.347, 3.932, 3.838, 4.002, 4.148
4.453, 3.792, 4.533

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orchestra answered 1 year ago
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