Exercise 14 “Earthquake Depths”

Refer to the sample data from the given exercises in Section 13-2 on page 611. Use the Wilcoxon signed-ranks test for the claim about the median of a population.

Data From Exercise 14 Section 13-2:

Refer to Data Set 21 “Earthquakes” in Appendix B for the earthquake depths (km). Use a 0.01 significance level to test the claim that the median is equal to 5.0 km.

Refer to the indicated data set in Appendix B and use the sign test for the claim about the median of a population.

Data Set 21: Earthquakes

Data are from 600 matched pairs (first five rows shown here) of magnitude>depth measurements randomly selected from 10,594 earthquakes recorded in one year from a location in southern California. Only earthquakes with a magnitude of at least 1.00 are used. MAGNITUDE is magnitude measured on the Richter scale and DEPTH is depth in km. The magnitude and depth both describe the source of the earthquake. The data are from the Southern California Earthquake Data Center.