Marketing researchers sent an advance e-mail notice announcing an upcoming Internet survey and describing the purpose of their research. Half the target customers received the prenotification, followed by the survey. The other half received only the survey. The survey completion frequencies are shown below. Research question: At α = .025, is completion rate independent of prenotification?

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Cross-Tabulation of Completion by Notification Pre-Notified? Yes No Col Total Row Total 194 192 386 Completec Not Completed 155 170 325 39 61