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QUESTION 13 An industrial engineer is conducting an experiment on eye focus time. He is interested in the effect of the dista
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He is interested in the effect of distances of the object from the eye on the focus time.

There are four different distances are of interest.

Ho : all distances of the object from the eye medians are equal

(3) Ha :- there is at least one distance of the object from the eye median is different.

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