The manager at BIG JIMS restaurant is concerned about the time it takes to process credit card payments at the counter by counter staff . The manager has collected the following processing time data (time in minutes/seconds) (Table 2.21) and requested that summary statistics are calculated.
(a) Calculate a five-number summary for this data set.
(b) Do we have any evidence for a symmetric distribution?
(c) Use the Excel Analysis-Tool Pak to calculate descriptive statistics.
(d) Which measures would you use to provide a measure of average and spread?
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