The division from which the winner of the Stanley Cup came for the years 1990 to 2015

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The division from which the winner of the Stanley Cup came for the years 1990 to 2015 is given in the following list, where the Western Division is represented by a W and the Eastern Division is repressed by an E.
W E E E E E W W W W E W W E E E W W E W E W W W W
Is there sufficient evidence to conclude that the winning division occurs randomly at the α = 0.05 level of significance?
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