Construct a 95% confidence interval for the population mean using the given information.Starting annual salary for all mechanical engineering graduates,  = $68,400, E = $14,280

A. $61,260< ? < $75,540
B. $62,210< ? < $74,550
C. $54,120 < ? < $82,680
D. $52,140 < ? < $86,620


Answer: C

Mathematics

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