Discussion:
Q: The Smoky Bear Trucking Company claims that the average weight of a fully loaded moving van is 12,000 lbs. The highway patrol decides to check this claim. A random sample of 29 Smoky Bear moving vans shows that the average weight is 12,100 lbs with a standard deviation 800 lbs. Construct a hypothesis test to determine whether the average weight of a Smoky Bear moving van is more than 12,000 lbs. Use 5% level of significance. Use the standard hypothesis testing procedure.