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A Sample of 12 Items Yields = 48

Question 96

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A sample of 12 items yields A sample of 12 items yields   = 48.5 grams and s = 1.5 grams. Assuming a normal distribution, construct a 90 percent confidence interval for the population mean weight. A)  [47.722, 49.278] B)  [47.788, 49.212] C)  [45.806, 51.194] D)  [47.865, 49.135] = 48.5 grams and s = 1.5 grams. Assuming a normal distribution, construct a 90 percent confidence interval for the population mean weight.


A) [47.722, 49.278]
B) [47.788, 49.212]
C) [45.806, 51.194]
D) [47.865, 49.135]

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