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An engineer.wishing to determine the travel time and average speed along a section of an urban highway as part of

an an annual trend analysis on traffic operation,conducted a travel time study using the floating-car technique.he carried out 10 runs and obtained a standard deviation of 3 mi/h in the speeds obtained.if a 5% significence levelis assumed,is the number of test runs adequatr?

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5% confidence level means more accurately is required so but standard DEVIATION is 3 which is very high. Standard DEVIATION... View the full answer

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