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An increased number of colleges have been using online resources to research applicants. According to a...

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Basic Math

An increased number of colleges have been using online resourcesto research applicants. According to a study from last? year, 31?%of admissions officers indicated that they visited an applying?student's social networking page. A random sample of 400 admissionsofficers was recently selected and it was found that 126 of themvisit the social networking sites of students applying to theircollege. Using alphaequals0.05?, complete parts a and b below. a.Does this sample provide support for the hypothesis that theproportion of admissions officers who visit an applying? students'social networking page has increased in the past? year? Determinethe null and alternative hypotheses. Choose the correct answerbelow. A. Upper H 0?: pequals0.31 Upper H 1?: pnot equals0.31 B.Upper H 0?: pless than or equals0.31 Upper H 1?: pgreater than0.31C. Upper H 0?: pgreater than0.31 Upper H 1?: pless than orequals0.31 D. Upper H 0?: pgreater than or equals0.31 Upper H 1?:pless than0.31 Determine the critical? value(s) of the teststatistic.

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