Question:

A taxi company claims that its drivers have an average of 15.4 years' experience. However, for a random sample of 35 taxi drivers, the average experience was 13.8 years and the sample standard deviation was 2.5. At = 0.01, is there evidence to conclude the taxi drivers have less experience than the taxi company claimed? Assume the data is normally distributed.

Context:

What is needed to solve is the P-Value method:

1. State the two hypotheses.
2. List the test used and the guidelines that are met.
3. List the test values needed and calculate the P-value.
4. Make a decision to reject or not reject the null.
5. Summarize the results in the context of the problem.