A researcher wishes to test whether the proportion of college students who smoke is the same in four different colleges.She randomly selects 100 students from each college and records the number that smoke.The results are shown below. 
Are the proportions of students smoking the same for all four colleges? Use a 1% level of significance.
Definitions:
Hypothalamus
A region of the brain responsible for producing hormones that control bodily functions like temperature, hunger, and sleep.
Infundibulum
A funnel-shaped structure; in the human body, it is part of organs such as the brain (connecting the pituitary gland to the hypothalamus) and the female reproductive system (the fallopian tubes).
Negative Feedback Mechanism
A regulatory process in biological systems where the output of a system inhibits or slows the processes leading to the output, ensuring stability.
Stimulus
Any external or internal factor that influences the activity of a living organism or any of its parts.
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