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Page(4/4) A random sample of 150 deaths in a given village, the average age of the sample was 70.5 years and the SD was 8

Page(4/4) A random sample of 150 deaths in a given village, the average age of the sample was 70.5 years and the SD was 8 years. Does this show that the average age in this village is greater than 75 years? Use a significant level of 0.05

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