The Australian study of (Table E7.6) provided these data on monocular acuity (expressed in log scale) for two female groups of subjects:

(1) Australian females of European origin

n? = 63

x? = -0.13

s? = 0.17

(2) Australian females of Aboriginal origin

n? = 54

x? = -0.24

s? = 0.18

Do these indicate a racial variation among women? Name your test and state clearly your null and alternative hypotheses and choice of test size.

?

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