Math, asked by ravikumar98007, 7 months ago

from a smaple of 200 students in a college the mean weight was found to be 120lbs.and the standered deviation 10 lbs .another sample of 250 students was also taken and standered deviation 8 lbs .does means of the first sample significantly differ from the combined means of two sample ?the population standard deviation is 9.5 lbs

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Answered by singhsaroha04

0

Answer:

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