Questions from Applied Statistics

Q: Which measurement level (nominal, ordinal, interval, ratio)

Which measurement level (nominal, ordinal, interval, ratio) is each of the following variables? Explain. a. Number of passengers on Delta Flight 833. b. Waiting time (minutes) after gate pushback bef...

Q: When Pennsylvania repealed a law that required motorcycle riders to wear helmets

When Pennsylvania repealed a law that required motorcycle riders to wear helmets, a news headline reported, “Deaths Soar After Repeal of Helmet Law.” After reading the story, Bill said, “But it’s just...

Q: Which measurement level (nominal, ordinal, interval, ratio)

Which measurement level (nominal, ordinal, interval, ratio) is the response to each question? If you think that the level of measurement is ambiguous, explain why. a. How would you describe your leve...

Q: (a) Would the measurement level for the data collected from

(a) Would the measurement level for the data collected from this Microsoft® survey question be nominal, ordinal, interval, or ratio? (b) Would a “6” resp...

Q: Which measurement level (nominal, ordinal, interval, ratio)

Which measurement level (nominal, ordinal, interval, ratio) is each of the following variables? Explain. a. Number of hits in Game 1 of the next World Series. b. Baltimore’s standing in the American...

Q: Use the sample information x bar = 2.4, σ

Use the sample information x bar = 2.4, σ = 0.15, n = 9 to calculate the following confidence intervals for μ assuming the sample is from a normal population: (a) 90 percent confidence; (b) 95 percent...

Q: (a) Make a stem-and-leaf plot for

(a) Make a stem-and-leaf plot for these 24 observations on the number of customers who used a downtown CitiBank ATM during the noon hour on 24 consecutive workdays. (b) Make a dot plot of the ATM data...

Q: Below are sorted data showing average spending per customer (in dollars

Below are sorted data showing average spending per customer (in dollars) at 74 Noodles & Company restaurants. (a) Construct a frequency distribution. Explain how you chose the number of bins and t...

Q: (a) Use Excel to prepare a 2-D stacked

(a) Use Excel to prepare a 2-D stacked column chart for television sales by year. Modify the colors, fonts, etc., to make the display effective. (b) Change your graph to a 3-D stacked column chart. Mo...

Q: (a) Use Excel to prepare a 2-D pie

(a) Use Excel to prepare a 2-D pie chart for these web-surfing data. Modify the default colors, fonts, etc., as you judge appropriate to make the display effective. (b) Right-click the chart area, sel...