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A researcher examined a given set of data from newborn weight from mothers who smoked, and mothers who did not. Calculate the standard error of

A researcher examined a given set of data from newborn weight from mothers who smoked, and mothers who did not. Calculate the standard error of the difference between the mean of both groups. Find the df using the conservative method

Smoker

Non-Smoker

Mean

5.78

Std dev

1.45

Sample size

40

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