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Suppose a random sample of 50 college students is asked if they regularly eat breakfast. A...

  1. Suppose a random sample of 50 college students is asked if they regularly eat breakfast. A 95% confidence interval for the proportion of all students that regularly eat breakfast is found to be 0.69 to 0.91. If a 90% confidence interval was calculated instead, how would it differ from the 95% confidence interval?

    1. The 90% confidence interval would be wider.

    2. The 90% confidence interval would be narrower.

    3. The 90% confidence interval would have the same width as the 95% confidence

      interval.

    4. There is no way to tell if the 90% confidence interval would be wider or narrower

      than the 95% confidence interval.

Math   Statistics-And-Probability   
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