Libertys nose Is the Statue of Libertys nose too long? Her nose measures, 46, but she is a large statue, after all. Her arm is 42 feet long. That means her arm is 42>4.5 = 9.3 times as long as her nose. Is that a reasonable ratio? Shown in the table are arm and nose lengths of 18 girls in a Statistics class, and the ratio of arm-to-nose length for each. a) Make an appropriate plot and describe the distribution of the ratios. b) Summarize the ratios numerically, choosing appropriate measures of center and spread. c) Is the ratio of 9.3 for the Statue of Liberty unrealistically low? Explain.

Confidence Interval Sample statistic Usually a point estimate Used to estimate population parameter Sample point estimate +/- margin of error Lower endpoint sample point estimate upper endpoint Margin of error Margin of error Measure of variability associated with point of estimate at desired level of confidence Small margin of error means higher precision Higher desired confidence level means a larger margin of error Lowest value in the computed confidence level =lower endpoint Highest value in the computed confidence level= higher endpoint Confidence interval for p Point estimate +/- margin of error Margin of