To Find the Standard Deviation of the Diameter of Wooden $\sigma _ { . }$

question 75

Multiple Choice

To find the standard deviation of the diameter of wooden dowels, the manufacturer measures 19 randomly selected dowels and finds the standard deviation of the sample to be s = 0.16. Find the 95% confidence interval
For the population standard deviation $\sigma _ { . }$

• A) \(0.11 < \sigma < 0.25\)
• B) \(0.15 < \sigma < 0.21\)
• C) \(0.12 < \sigma < 0.24\)
• D) \(0.13 < \sigma < 0.22\)

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