Crossett Trucking Company claims that the mean weight of its delivery trucks when they are fully loaded is 5,350 pounds and the standard deviation is 180 pounds. Assume that the population follows the normal distribution. Thirty-five trucks are randomly selected and weighed.

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

1. Sample mean_____to_____.