Explore BrainMass

Sample means

Crossett Trucking Company claims that the mean weight of its delivery trucks when they are fully loaded is 6,050 pounds and the standard deviation is 160 pounds. Assume that the population follows the normal distribution.Fifty trucks are randomly selected and weighed.

Within what limits will 90 percent of the sample means occur? (Round your z-value to 2 decimal places and final answers to 1 decimal place.)

Sample means ________ to _________

Solution Summary

Compute sample means.