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Quiz 2 – Data and Statistical Foundation

Which statement correctly distinguishes discrete data from continuous data? *
A company classifies customer satisfaction as Poor, Fair, Good, and Excellent. Which measurement scale is most appropriate? *
A Green Belt wants observations representing each of three production shifts because operating conditions may differ by shift. Which sampling approach is most appropriate? *
A dataset contains the response times 4, 5, 6, 7, and 8 minutes. What is the arithmetic mean? *
Which statistic is generally least affected by a single extreme observation in a dataset? *
Which graphical tool is most appropriate for examining the distribution, center, spread, and potential unusual observations of a continuous measurement? *
A quality team wants to prioritize defect categories by their contribution to the total number of defects. Which graphical tool is most appropriate? *
Which probability distribution is commonly appropriate for the number of successes in a fixed number of trials when each trial has two possible outcomes and the model assumptions are satisfied? *
A service center records the number of customer complaints received each day. The outcome is a count of events within a defined time interval. Which distribution may be appropriate when its assumptions are satisfied? *
A process has a Normal distribution with mean 100 units and standard deviation 5 units. Approximately what percentage of observations are expected to fall between 90 and 110 units under the empirical rule? *