A lumber company is making 2x4s that are 13 feet long. These 2x4s are being used to make prefabricated homes. If the 2x4s are too long they must be trimmed and if too short they cannot be used. A sample of 84 2x4s is made, and it is found that they averaged 12.95 feet. Based on historical data over the years, the population standard deviation is known to be 0.15 feet. Is there evidence, at the 0.1 significance level, that the 2x4s are either too long or too short