hickness of this metal? If so, find the confidence interval. If not, explain why

Question

hickness of this metal? If so, find the confidence interval. If not, explain why not 10. Fission tracks are trails found in uranium-bearing minerals, left by fragments released during fission events. The article “Yo-yo Tectonics of the Nigde Massif During Wrenching in Central Anatolia" (D. whitney P. Umhoefer, et al., Turkish Jonnal qf Earth Sciences, 2008:209-217) reports that fifteen tracks on one rock specimen had an average track length of 13 ian with a standard deviation of 2 Assuming this to be a random sample from an ap- proximately normal population, find a 99% confi. dence interval for the mean track length for this rock pecimen

Explanation / Answer

Question 10

Average track length of sample x = 13 m

Standard deviation of track length of sample s = 2 m

sample size n = 15

standard error of sample mean se0 = s/sqrt(n) = 2/sqrt(15) = 0.5164

99% cofidence interval for population mean = x +- t14,0.01 se0  = 13 +- 2.9768 * 0.5164 = (11.463 m , 14.537 m )

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