1. Electric Motor Reliabilities DS 17.5.3 contains a data set of failure times in days of a certain type of electric motor. Exact failure times are observed when the motor fails to operate correctly and needs replacing. Right-censored observations, denoted with an asterisk, occur when a motor is replaced while it is still operating successfully.

(a) Construct and graph the product limit estimator of the reliability function for the electric motors.

(b) Construct a 95% confidence interval for the probability that an electric motor operates successfully for at least 200 days.

2. You now know much more about probability and statistics than you did at the beginning of the book.

A. True                                                 B. False