Question: What is the 95% confidence interval? Provide an appropriate interpretation of this confidence interval. (2 points)

1. There is a 95% chance that the true mean of annual healthcare expenditures falls in the interval ($6,596, $10,340).
2. There is a 95% chance that the interval ($6,596, $10,340) contains the true mean of annual healthcare expenditures.
3. If we take repeated samples of size 20 we expect that 95% of our 95% confidence intervals for annual healthcare expenditures will contain the true mean.
4. Both a and c are correct.
5. Both b and c are correct.

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