A recipe for a new wall covering product is in the development stage. It is important that the average elasticity of this product is exactly 12%. A random sample of 49 pilot batches of the new recipe is found to have an average acidity content of 12.28%. It is also known that wall coverings produced in this manufacturing plant in general have a population standard deviation of 0.70%.
The correct hypothesis to test the elasticity level is:
The test statistic for the hypothesis test is
At the .01 level of significance your decision is to ___________ H0. (Accept/Reject)