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Statistics & DataEasyConfidence Intervals

Confidence Intervals · Easy problem

A sample of 25 bus trips has mean travel time xˉ=50\bar x = 50 minutes and standard deviation s=10s = 10 minutes. Find the LOWER end of the 95% tt confidence interval for the mean travel time, using t∗=2.064t^* = 2.064 (24 degrees of freedom). Round to the nearest hundredth.