BUS 308 Statistics for Managers - Ashford - Week 2 Quiz

1.

Question :

How is the sum of squares unlike either the standard deviation or the variance?

 2.

Question :

If sums of squares statistics are calculated for shoppers at three different retail outlets, what statistic will indicate the variability among those at each outlet?

 3.

Question :

Which is the symbol used for the test statistic in ANOVA?

 4.

Question :

If ANOVA reveals that four different departments have significantly different levels of productivity, what will a post-hoc test indicate?

 5.

Question :

The independent t-test is based on which distribution?

 6.

Question :

What does omega-squared indicate?

 7.

Question :

Each different t-distribution is defined by which of the following?

 8.

Question :

When a significant interaction is graphed, what is indicated on the vertical axis?

 9.

Question :

Four different groups of employees are randomly selected from a common population for a study of differences in the impact of a wage increase.  Why will there be differences even before the incentive is applied?

 10.

Question :

What is the probability of type II error when the null hypothesis is rejected?