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The mean weight of loads of coal placed in train cars by a loading machine is 430 tons with a standard deviation of 80 tons Assuming that the weight of loads placed in the train cars by this loader

The mean weight of loads of coal placed in train cars by a loading machine is 43.0 tons with a standard deviation of 8.0 tons. Assuming that the weight of loads placed in the train cars by this loader are normally distributed, if a random sample of 9 loads is chosen for a weight check, find the probability that the mean weight of those loads is more than 40.60 tons.Rounded to four decimal places please.

The mean weight of loads of coal placed in train cars by a loading machine is 43.0 tons with a standard deviation of 8.0 tons.Assuming that the weight of loads placed in the train cars by this...

Apr 08 2020 View more View Less

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