Question

The mean life of a Sample of 10 electric bulbs was found to be 1456 hours with S.D
of 423 hours A Second Sample of 17 bulbs chosen from a different batch showed a
mean life of 1280 hours with S.D of 398 hours. Is there a Significance difference
between the mean of two batches?

Answer 1

Answer:

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Step-by-step explanation:

ghxucjfघर एवं विद्यालय में जल संरक्षण के उपायों को बताएं