The building specifications in a certain city require that the sewer pipe used in residential areas have a median breaking strength of more than 2,500 pounds per lineal foot. A manufacturer who would like to supply the city with sewer pipe has submitted a bid and provided the following additional information. An independent contractor randomly selected seven sections of the manufacturer’s pipe and tested each for breaking strength. The results (pounds per lineal foot) are shown below. Is there sufficient evidence to conclude that the manufacturer’s sewer pipe meets the required specifications? Use a significance level of α = .10.    

Transcribed Image Text:

SEWER 2,610 2,750 2,420 2,510 2,540 2,490 2,680