Adult male heights at 5th,50th,95th percentiles are162,173,185 cm. Find minimum tractor-cab internal height for satisfactory clearance based on these data, in integer cm.
A clearance dimension is selected for the larger users rather than the median or the smaller reach-limited users. On the supplied percentile basis, the95th-percentile height is 185 cm, so the keyed minimum is **185 cm**. Actual cab design would also allow specified headroom, posture and equipment allowances, which are not supplied here.
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