Question 16 0.33/1 pt 2-3 19 Details Part 1 of 2 A confidence interval for the population mean number of US states Americans have visited was found to be 11.4 to 12.2. Find the midpoint of this confidence interval: 11.8 Part 2 of 2 State the confidence interval in the form $\bar{x} \pm$ margin of error:
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Step 1: The midpoint of a confidence interval is the average of the upper and lower bounds. Show more…
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