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On an elementary school examination in spelling the mean mark of 100 boys was 72 with a standard deviation of 8 while the mean mark

On an elementary school examination in spelling the mean mark of 100 boys was 72 with a standard deviation of 8 while the mean mark of 50 girls was 75 with a standard deviation of 6Test at the 1% level of significance to see if there is a gender difference with respect to average marks obtained in spelling

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