Question

A poll was taken this year asking college students if they considered themselves overweight. A similar poll was taken 5 years ago. Five years ago, a sample of 270 students showed that 120 considered themselves overweight. This year a poll of 300 students showed that 140 considered themselves overweight. At a 5% level of significance, test to see if there is any difference in the proportion of college students who consider themselves overweight between the two polls. What is your conclusion? Show all work and please make legible

Answer 1

sample 1 : 5 years ago

p1 = 120/270

sample 2 : this year

p2 = 140/300

Test :

Therefore,

there is no significant difference between the two proportions at 5% level of significance

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