A tire manufacturer claims that its tires have a mean life of at least 50000 kms. A random sample of 16 of these tires is tested and the sample mean is 33000 kms. Assume the population standard...

A tire manufacturer claims that its tires have a mean life of at least 50000 kms. A random sample of 16 of these
tires is tested and the sample mean is 33000 kms. Assume the population standard deviation is 3000 kms and
the lives of tires are approximately normally distributed. Based on these results, the p-value is calculated to be
0.000. What is an appropriate conclusion at significance level a=0.05