Daniel works for a market research firm. He has been assigned to conduct a survey to find out if people like to watch movies at home or at the theater. Accordingly, he conducted the survey by randomly picking respondents outside a popular theater in his city and found that 172 out of the 200 people surveyed said that they preferred visiting the theater. Which of the following statements is a valid conclusion?
It is likely that 86% of all people in Daniel’s country prefer to watch movies at the theater than at home.
It is likely that 86% of all residents who live around the theater where the survey was conducted prefer to watch movies at the theater rather than at home.
It is likely that 86% of all residents of Daniel’s city prefer to watch movies at the theater than at home.
Daniel’s sample is biased and therefore his survey result is invalid.
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