A researcher wants to determine whether the means of two independent populations are the same.She has two independent random samples,one from each population,shown in the following table: 
She uses the Mann-Whitney U test and a significance level of 0.05.The test statistic is ______.
Definitions:
Q4: In statistics,the Winters' Three Parameter statistic is
Q12: It is more profitable for marketers to
Q21: The regression model y =
Q31: Calculating the "ratios of actuals to moving
Q37: A market researcher is studying the
Q40: Ray Crofford is evaluating investment alternatives to
Q50: Field service firms:<br>A)are data collection specialists who
Q62: A recent national poll showed the reading
Q66: Nels Neugent,Purchasing Manager at Mid-West Medical Center,is
Q79: The city golf course is interested in