In order to compare the mean hemoglobin hb levels of


In order to compare the mean Hemoglobin (Hb) levels of well-nourished and undernourished groups of children, random samples from each of these groups yielded the following summary.

 

Number of children

Sample mean

Sample standard deviation

Well nourished

95

11.2

0.9

Undernourished

75

9.8

1.2

Test at α = 0.01 whether the mean Hb levels of well-nourished children were higher than those of undernourished children.

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Basic Statistics: In order to compare the mean hemoglobin hb levels of
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