A student records the time (in minutes)it takes to commute to school for seven days.Those results are: 21,15,13,16,10,13,and 18.Assuming the population is normally distributed,develop a 95% confidence interval for the population mean.
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= 15.143,s = 3.625,tn-1,α/2 = t6,0.025 = 2...
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