Five years ago,the average starting salary of a new university graduate with a major in marketing was $34,000.A random sample of 10 graduates from this year's graduating class of a local university yielded the following starting salaries in thousands of dollars: 38,36,25,37,35,24,38,45,39,36.The local university wants to determine if the starting salaries have increased in the last five years.Assume that the population of starting salaries in marketing is not normally distributed.Which one of the following tests is appropriate for this problem?
A)Wilcoxon signed rank test
B)Wilcoxon rank sum test
C)Sign test
D)Kruskall-Wallis test
E)Mann-Whitney test

Question

Quizplus · Accepted Answer

The Sign test is appropriate for this problem because it is a non-parametric test used to evaluate the median of a single sample against a known median (in this case, $34,000) without assuming a normal distribution of the population data.

Five Years Ago,the Average Starting Salary of a New University