The thicknesses (in inches) of 15 randomly selected washers produced by a machine are listed. Use a
Question:
The thicknesses (in inches) of 15 randomly selected washers produced by a machine are listed. Use a 95% level of confidence.
Assume the sample is from a normally distributed population and construct the indicated confidence intervals for
(a) The population variance σ2
(b) The population standard deviation σ. Interpret the results.
Transcribed Image Text:
0.422 0.424 0.424 0.430 0.419 0.424 0.420 0.424 0.425 0.425 0.423 0.431 0.437 0.422 0.434
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Related Book For
Elementary Statistics Picturing The World
ISBN: 9780321911216
6th Edition
Authors: Ron Larson, Betsy Farber
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