Question: If you are constructing a confidence interval for a population mean, for the same confidence level, the width of the confidence interval will __________ as

If you are constructing a confidence interval for a population mean, for the same confidence level, the width of the confidence interval will __________ as the sample sizeincreases.

Decrease

Increase

Stay the same

Depends on the sample size

Suppose a 95% CI for the population proportion is [0.35, 0.45]. How should we interpret this confidence interval?

There is a 95% chance that the population proportion lies between 0.35 and 0.45

We are 95% confident that the population proportion lies between 0.35 and 0.45

Both of the above are correct

None of the above

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