Annual Pay An employment information service claims the mean annual salary for full-time female workers over age 25 and without a high school diploma is more than $18,500. The annual salaries for a random sample of 12 full-time female workers without a high school diploma are listed. At a = 0.10, is there enough evidence to support the claim that the mean salary is more than $18,500? (Adapted from US Bureau of Labor Statistics) 18,665 16,312 18,794 19,403 20,864 19,177 17,328 21,445 20,354 19,143 18,316 19,237 Testing Claims Using P-Values In Exercises 25-30,

(a) write the claim mathematically and identify Ho and Ha,

(b) use technology to find the P-value,

(c) decide whether to reject or fail to reject the null hypothesis, and

(d) interpret the decision in the context of the original claim. Assume the population is normally distributed.