Two employers (A and B) ranked five candidates for a new position. Their rankings of the candidates are shown below. 
Compute the Spearman rank-correlation and test it for significance. Let = 0.05.
Definitions:
Phacolysis
A surgical procedure for cataract removal where the lens of the eye is emulsified and aspirated.
Photocoagulation
A medical procedure using focused light (laser) to clot or destroy abnormal tissue.
Intraocular Pressure
The fluid pressure inside the eye, important in the diagnosis and management of glaucoma.
Retrolental Fibroplasia
A disease of the eye affecting prematurely born infants that can lead to retinal detachment and blindness, also known as retinopathy of prematurity.
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