A study was conducted to compare the average time spent in the lab each week versus course grade for computer students.The results are recorded in the table below. 
Using a 5% level of significance,perform a nonparametric test to determine if there is a monotonic association between the number of hours spent in the lab each week and the grade a student receives.Assume that rank ties will have little influence on your result.
Definitions:
Sildenafil (Viagra)
A medication used primarily to treat erectile dysfunction and, under the name Revatio, pulmonary arterial hypertension by increasing blood flow to the penis.
Sexual Arousal
The physiological and psychological state of being awake or stimulated to sexual activity.
Multiple Orgasms
The experience of having more than one orgasm during a single sexual activity session.
Refractory Period
A period immediately following a stimulus during which a nerve or muscle is unresponsive to further stimulation.
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