A sample of 100 units is found to have mean 74. Can it be reasonably regarded as a sample from a large population with mean 72 and standard deviation 8 ? (Take 5% level of I significance. )
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A sample of 100 units is found to have mean 74. Can it be reasonably regarded as a sample from a large population with mean 72 and standard deviation 8 ? (Take 5% level of I significance.
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