1. Why must business managers understand the importance of business research and how it is used in their organizations? 2. For the normal distribution: (a) tell how many parameters it has; (b) indicate what the parameters represent; (c) describe its shape; and (d) explain why all normal distributions are alike despite having different ? and ?. 3. How can we determine when descriptive statistics have been skewed to fit the needs of a particular situation rather than reporting of the actual data?