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1.From a random sample of 65 students, 40% said they prefer to wake up to do their homework rather than stay up late. If appropriate,

1.From a random sample of 65 students, 40% said they prefer to wake up to do their homework rather than stay up late. If appropriate, calculate and interpret the 98% confidence interval.

2. Find the Margin of Error from the interval you found in Question 1.

3. How large would the sample size have to be to make the Margin of Error half as big in the 98% confidence interval?

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