The NJ Department of Transportation conducted a study to find the average amount of time car...
The NJ Department of Transportation conducted a study to find the average amount of time car drivers spend commuting during weekends. They surveyed 196 car drivers and the study found out that the driver’s population spent an average of 13 hours commuting with a standard deviation of 11 hours.
(a) What is the standard error of the mean?
(b) Compute the probability the sample mean is greater than 15 hours?
(c) Compute the probability the sample mean is less than 13 hours?
(d) Compute the probability the sample mean is between 13 and 17 hours?
Please show all the steps to get the results.
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