Is the true proportion of students who floss at least once


1. Is the true mean age of students higher than 21?

2. Is the true proportion of students who floss at least once a day a majority?

3. Is there a difference in the true mean exercise hours for students during the week and the weekend?

4. Is there a difference in the true proportions of males and females who wash their hands after every visit to the toilet?

5. Is there a difference in the true mean height of students based on if they always carry an umbrella?

6. Is there a relationship between sex and how a student feels about their weight?

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