Q3. For each of the following, indicate whether the data are cross-sectional or timeseries= a. quarterly unemployment rates. b. unemployment rates by state. C. monthly sales. d. employment satisfaction data for a company. Q4. Give an examples to distinguish the difference between : A) Qualitative and Quantitative data. B) Interval and Ratio data . Q5. A company has 18,000 employees. The le containing the names is ordered by employee number from 1 to 18,000. If a sample of 100 employees is to be selected from the 18,000 using systematic random sampling, Within What range of employee numbers Will the rst employee selected come from