In a sample of 600 students of a certain college 400 are found to use ball pens .In another college from a sample of 900 students 450 were found to use ball pens .Test whether two colleges are significantly different with respect to the habit of using ball pens.
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Step-by-step explanation:
Ball pen users in first college: 400 students out of 600 = 400/600= 2/3= 66%
Ball pen users in second college: 450 students out of 900 = 450/900= 1/2= 50%
In first college majority of students and in second college half of the students use ball pens.
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