Question

Use the sample data to find a 99% confidence interval for the average monthly student loan payment among all recent college graduates who had at least one student loan during college.Round all answers to the nearest cent (two decimal places).The margin of error for this confidence interval is: $

The 99% confidence interval is:$

<μ<<μ< $

The heights of all women in a large population follow a Normal distribution with unknown mean μμ. In a simple random sample of 44 women, the average height was 247.9 cm, and the standard deviation was 49.49 cm.In each question below, give answers to at least three decimal places.

1. Find a 90% confidence interval for μμ, using the above sample data:

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   Equation Editor <μ<<μ<

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2. Find a 95% confidence interval for μμ, using the above sample data:

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   Equation Editor <μ<<μ<

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   Equation Editor
3. Find a 99% confidence interval for μμ, using the above sample data:

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   Equation Editor <μ<<μ<

Answer 1