Five years ago,the average starting salary of a new college 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 ranks test
B)Wilcoxon rank sum test
C)Sign test
D)Kruskal-Wallis test
E)Mann-Whitney test

Question

Quizplus · Accepted Answer

The Sign test is appropriate here because it is a non-parametric test used to determine if there is a difference in the median of a single sample compared to a known value, without assuming a normal distribution.

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