Which of the following is used to compare the medians from two samples?

A) Mann-Whitney U
B) Wilcoxon rank test
C) Kruskal-Wallis one-way ANOVA
D) the sign test

Express the following ratio in its lowest terms:
$\frac{2}{3}:\frac{3}{4}:\frac{5}{6}$

Calculate the reconciled cash balance:

What is the semi-annually compounded nominal rate that is equivalent to 10.5% compounded monthly?

A) 11.02%
B) 8.75%
C) 5.37%
D) 10.73%
E) 11.44%

In the past, the average age of employees of a large corporation has been 40 years.Recently, the company has been hiring older individuals.In order to determine whether there has been an increase in the average age of all the employees, a sample of 64 employees was selected.The average age in the sample was 45 years with a standard deviation of 16 years.Let α = .05.
a.
State the null and the alternative hypotheses.
b.
Compute the test statistic.
c.
Using the p-value approach, test to determine whether or not the mean age of all employees is significantly more than 40 years.

Solve the following proportion for the unknown quantity: 1.89: 0.31 = 175: k, to one decimal place.