Problem 60E

An article in Knee Surgery, Sports Traumatology, Arthroscopy [“Arthroscopic Meniscal Repair with an Absorbable Screw: Results and Surgical Technique” (2005, Vol. 13, pp. 273–279)] showed that only 25 out of 37 tears (67.6%) located between 3 and 6 mm from the meniscus rim were healed.

(a) Calculate a two-sided 95% confidence interval on the proportion of such tears that will heal.

(b) Calculate a 95% lower confidence bound on the proportion of such tears that will heal.

Lecture 8: Introduction to Inference and Understanding Sampling Distributions 9.1 Parameters, Statistics, and Statistical Inference - Some distinctions to keep in mind: ▯ Population versus Sample ▯ Parameter versus Statistic - Population: Parameter, population proportion, population mean - Sample: Sample mean, sample proportion, statistic Statistical Inference: - the use of sample data to make judgments or decisions about populations. Confidence Interval Estimation: - A confidence interval is a range of values that the researcher is fairly confident will cover the true, unknown value of the p