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In order to gain additional information about respondents, some marketing researchers have used ultraviolet ink to

precode questionnaires that promise confidentiality to respondents. Of 261 randomly selected marketing researchers who participated in an actual survey, 175 said that they disapprove of this practice. Suppose that, before the survey was taken, a marketing manager claimed that at least 88 percent of all marketing researchers would disapprove of the practice.28.PNG


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(A) P ( X 1 7 5 ) = 0 . 0 0 0 0 ... View the full answer

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