Tanker oil spills. Refer to the Marine Technology (January 1995) study of the causes of 50...

Tanker oil spills. Refer to the Marine Technology (January 1995) study of the causes of 50 recent major oil spills from tankers and carriers, presented in Exercise 2.186 (p. 106). The data are stored in the OILSPILL file.

a. Give a point estimate for the proportion of major oil spills that are caused by hull failure.

---

b. Form a 95% confidence interval for the estimate you found in part a. Interpret the result.

Exercise 2.186