Reliable Housewares is a local store that sells many household items and issues its own credit card to its customers. The store manager wants to study the purchasing behavior of its credit customers. To that end, he has come to DeVry and asked our MBA students for help. The manager has brought with him data on five variables of 55 randomly selected credit customers. Hypothesis Testing and Confidence Intervals The Reliable Housewares store manager wants to learn more about the purchasing behavior of its credit customers. In fact, he is speculating about four specific cases shown below (a) through (d) and wants you to help him test their accuracy.
