A researcher wants to test if elementary school children spe…

A researcher wants to test if elementary school children spend less than 30 minutes per day on homework. A random sample of 60 children from the school shows that they spend an average of 27.0 minutes per day on homework. Suppose the p-value is 0.1003. What should the test conclude?

The marketing manager for a software company is trying to de…

The marketing manager for a software company is trying to decide whether to market her company’s newest product by mail, on television, or through the Internet. She selects 20 communities to test-market the product, advertising through one media in each community. At the