A researcher draws unbiased sample of 100 adult delhites and find that their mean weight is 72 kg with a standard detion of 1.5. 95% of wt of delhites shall be between:
Correct Answer: 69 and 75 kg
Description: In the given question, n = 100 adult Delhites, mean weight (u) = 72kg, standard detion (SD) = 1.5 95% wt of delhites = Mean +- 2SD (u +- 2SD) = 72 +- 2 (1.5) = 72 +- 3 =b/w 69 & 75 kg wt
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