Skip to main content
7. Sampling Distributions & Confidence Intervals: Mean
7. Sampling Distributions & Confidence Intervals: Mean / Confidence Intervals for Population Mean / Problem 13
Problem 13

A researcher collects a simple random sample of waiting times in minutes for a popular amusement park ride. A confidence level of 95%95\% was used. The researcher used a calculator for analysis, as shown in the figure.
Confidence interval (33.49, 37.41), sample mean 35.45, standard deviation 6.13, sample size 40.
Provide a statement that correctly interprets the confidence interval displayed.