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QUESTION 13 To test the reliability of electric devices, a sample of 35 devices was taken. The mean number of minutes that the devices

QUESTION 13 To test the reliability of electric devices, a sample of 35 devices was taken. The mean number of minutes that the devices in the sample performed without errors was 207. The sample standard deviation was 13.1. What was the left boundary of 93% confidence interval to estimate the population mean? Use Excel for all computations and round your final answer to 2 decimals.

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