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Confidence intervals 12 pts D Question 1 Suppose a SRS of 25 inanimate carbon rods are produced by Sector 7G in the Springfield Nuclear Plant.

Confidence intervals

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12 pts D Question 1 Suppose a SRS of 25 inanimate carbon rods are produced by Sector 7G in the Springfield Nuclear Plant. The rods are supposed to have an average diameter of 12mm, but these 24 have an average diameter of 24.5mm with a standard deviation of 3.1mm. a) Find and interpret a 95% confidence interval for the true diameter of carbon rods produced by Sector 7G. b) Based on your interval, is Sector 7G doing their job badly? Explain. Edit View Insert Format Tools Table 12pt ~ Paragraph ~|B J U A &V TV EVGV

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