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25-11-2022
Biology

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many people believe that taking zinc lozenges reduces the severity and duration of the common cold. sebastien decides to conduct a study at his school to explore this claim. he sends a survey to a simple random sample of 100 students, asking them to if they took zinc lozenges or not during their last cold, and how long they experienced cold symptoms. he found that students who took zinc had a mean cold duration that was 1.2 days lower than those who did not take zinc. which of the following statements about his study is true?

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