ENVS178 Final: Practice Questions for Final
26 Aug 2015
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Summary statistics: here are the summary stats for the weekly payroll of a small company: lowest salary = , mean salary = , median = , range =, iqr=, q1=, Why: between what two values are the middle 50% of the salaries found, suppose business had been good and the company gives every employee a raise. Tell the new value of each of the summary stats. d. Instead, suppose the company gives each employee a 10% raise. Tell the new value of each of the summary stats: one measure of the size of an automobile engine is displacement, the total volume (in litres or cubic inches) of its cylinders. Summary stats for several models of new cars are shown below. Is that engine unusually large: are there any engines in this data set that you would consider to be outliers? f.
