True average repair time, Is there sufficient evidence for

True average repair time

Reference no: EM13102623

The following data represent time to repair (min) a computer station.

159 120 480 149 270 547 340 43 228 202 240 218

Is there sufficient evidence for concluding that true average repair time exceeds 200 min? Carry out a test of hypotheses using a significance level of .05.

Reference no: EM13102623

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