Mathematics, 13.12.2019 20:31 trobbie817
Suppose you are the director of transportation safety for the state of georgia. you are concerned because the average highway speed of all trucks may exceed the maximum speed limit. a random sample of 990 trucks show a mean speed of 62 mph. assume that the population mean is 60 mph and population standard deviation is 15 mph. find the probability of the average of the speed greater than or equal to 62 mph
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