For Problems 19-24, please provide the following information.
(a) What is the level of significance? State the null and alternate hypotheses. Will you use a left-tailed, right-tailed, or two-tailed test?
(b) Check Requirements What sampling distribution will you use? Explain the rationale for your choice of sampling distribution. Compute the z value of the sample test statistic.
(c) Find (or estimate) the P-value. Sketch the sampling distribution and show the area corresponding to the P-value.
(d) Based on your answers in parts (a) to (c), will you reject or fail to reject the null hypothesis? Are the data statistically significant at level
(e) Interpret your conclusion in the context of the application.
Finance: P/E of Stocks The price-to-earnings (P/E) ratio is an important tool in financial work. A random sample of 14 large U.S. hanks (JP Morgan Chase. Bank of America, and others) gave the following P/E ratios (Reference: Forbes).
24 16 22 14 12 13 17
22 15 19 23 13 11 18
The sample mean is
Want to see the full answer?
Check out a sample textbook solutionChapter 9 Solutions
Understanding Basic Statistics
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillCollege Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage Learning