Question: The general formula for a confidence interval is: Sample Statistic z * . SE Where z* is sometimes referred to as the critical value and

The general formula for a confidence interval is:

Sample Statistic z^*. SE

Where z* is sometimes referred to as the critical value and is chosen so that the proportion between -z* and +z* in the standard normal distribution is the confidence level. This is more accurate than using 2SE for the margin of error from earlier in the course.

Calculate the lower and upper limits of a 99% confidence interval for a population mean given:

x = 69.4, SE = 7.08

99% Confidence interval =( , )Round your answer to 2 decimal place.

What inference can we make about a 99% confidence interval in general?

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